diff --git a/4g-volte-opensips-ims-deploy.yaml b/4g-volte-opensips-ims-deploy.yaml
new file mode 100644
index 0000000..e7f5895
--- /dev/null
+++ b/4g-volte-opensips-ims-deploy.yaml
@@ -0,0 +1,494 @@
+services:
+  mongo:
+    image: mongo:6.0
+    container_name: mongo
+    command: --bind_ip 0.0.0.0
+    env_file:
+      - .env
+    volumes:
+      - mongodbdata:/data/db
+      - mongodbdata:/data/configdb
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    expose:
+      - "27017/udp"
+      - "27017/tcp"
+    networks:
+      default:
+        ipv4_address: ${MONGO_IP}
+  webui:
+    image: docker_open5gs
+    container_name: webui
+    depends_on:
+      - mongo
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=webui
+    volumes:
+      - ./webui:/mnt/webui
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    expose:
+      - "9999/tcp"
+    ports:
+      - "9999:9999/tcp"
+    networks:
+      default:
+        ipv4_address: ${WEBUI_IP}
+  hss:
+    image: docker_open5gs
+    container_name: hss
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=hss-1
+    volumes:
+      - ./hss:/mnt/hss
+      - ./log:/open5gs/install/var/log/open5gs
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    depends_on:
+      - mongo
+    expose:
+      - "3868/udp"
+      - "3868/tcp"
+      - "3868/sctp"
+      - "5868/udp"
+      - "5868/tcp"
+      - "5868/sctp"
+    networks:
+      default:
+        ipv4_address: ${HSS_IP}
+  sgwc:
+    image: docker_open5gs
+    depends_on:
+      - smf
+      - upf
+    container_name: sgwc
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=sgwc-1
+    volumes:
+      - ./sgwc:/mnt/sgwc
+      - ./log:/open5gs/install/var/log/open5gs
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    expose:
+      - "2123/udp"
+      - "8805/udp"
+    networks:
+      default:
+        ipv4_address: ${SGWC_IP}
+  sgwu:
+    image: docker_open5gs
+    depends_on:
+      - smf
+      - upf
+    container_name: sgwu
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=sgwu-1
+    volumes:
+      - ./sgwu:/mnt/sgwu
+      - ./log:/open5gs/install/var/log/open5gs
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    expose:
+      - "8805/udp"
+      - "2152/udp"
+    # ports:
+    #   - "2152:2152/udp"
+    networks:
+      default:
+        ipv4_address: ${SGWU_IP}
+  smf:
+    image: docker_open5gs
+    container_name: smf
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=smf-1
+      - DEPLOY_MODE=4G
+    volumes:
+      - ./smf:/mnt/smf
+      - ./log:/open5gs/install/var/log/open5gs
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    expose:
+      - "3868/udp"
+      - "3868/tcp"
+      - "3868/sctp"
+      - "5868/udp"
+      - "5868/tcp"
+      - "5868/sctp"
+      - "8805/udp"
+      - "2123/udp"
+      - "7777/tcp"
+      - "9091/tcp"
+    networks:
+      default:
+        ipv4_address: ${SMF_IP}
+  upf:
+    image: docker_open5gs
+    depends_on:
+      - smf
+    container_name: upf
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=upf-1
+    volumes:
+      - ./upf:/mnt/upf
+      - ./log:/open5gs/install/var/log/open5gs
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    expose:
+      - "2152/udp"
+      - "8805/udp"
+      - "9091/tcp"
+    cap_add:
+      - NET_ADMIN
+    privileged: true
+    sysctls:
+      - net.ipv4.ip_forward=1
+    networks:
+      default:
+        ipv4_address: ${UPF_IP}
+  mme:
+    image: docker_open5gs
+    depends_on:
+      - hss
+      - sgwc
+      - sgwu
+      - smf
+      - upf
+      - osmomsc
+    container_name: mme
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=mme-1
+    volumes:
+      - ./mme:/mnt/mme
+      - ./log:/open5gs/install/var/log/open5gs
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    expose:
+      - "3868/udp"
+      - "3868/tcp"
+      - "3868/sctp"
+      - "5868/udp"
+      - "5868/tcp"
+      - "5868/sctp"
+      - "36412/sctp"
+      - "2123/udp"
+      - "9091/tcp"
+    # ports:
+    #   - "36412:36412/sctp"
+    networks:
+      default:
+        ipv4_address: ${MME_IP}
+  pcrf:
+    image: docker_open5gs
+    container_name: pcrf
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=pcrf-1
+    depends_on:
+      - mongo
+    volumes:
+      - ./pcrf:/mnt/pcrf
+      - ./log:/open5gs/install/var/log/open5gs
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    expose:
+      - "3868/udp"
+      - "3868/tcp"
+      - "3868/sctp"
+      - "5868/udp"
+      - "5868/tcp"
+      - "5868/sctp"
+    networks:
+      default:
+        ipv4_address: ${PCRF_IP}
+  dns:
+    build: ./dns
+    image: docker_dns
+    container_name: dns
+    env_file:
+      - .env
+    volumes:
+      - ./dns:/mnt/dns
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    expose:
+      - "53/udp"
+    networks:
+      default:
+        ipv4_address: ${DNS_IP}
+  rtpengine:
+    build: ./rtpengine
+    image: docker_rtpengine
+    container_name: rtpengine
+    privileged: true
+    env_file:
+      - .env
+    volumes:
+      - ./rtpengine:/mnt/rtpengine
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    cap_add:
+      - NET_ADMIN
+    environment:
+      - TABLE=0
+      - INTERFACE=${RTPENGINE_IP}
+      - LISTEN_NG=${RTPENGINE_IP}:2223
+      - PIDFILE=/run/ngcp-rtpengine-daemon.pid
+      - PORT_MAX=50000
+      - PORT_MIN=49000
+      - NO_FALLBACK=no
+      - TOS=184
+    expose:
+      - "2223/udp"
+      - "49000-50000/udp"
+    networks:
+      default:
+        ipv4_address: ${RTPENGINE_IP}
+  mysql:
+    build: ./mysql
+    image: docker_mysql
+    container_name: mysql
+    env_file:
+      - .env
+    volumes:
+      - dbdata:/var/lib/mysql
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    expose:
+      - "3306/tcp"
+    networks:
+      default:
+        ipv4_address: ${MYSQL_IP}
+  pyhss:
+    build: ./pyhss
+    image: docker_pyhss
+    container_name: pyhss
+    dns: ${DNS_IP}
+    volumes:
+      - ./pyhss:/mnt/pyhss
+      - ./pyhss/logs:/pyhss/log/
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    env_file:
+      - .env
+    depends_on:
+      - dns
+      - mysql
+    expose:
+      - "3868/udp"
+      - "3868/tcp"
+      - "8080/tcp"
+    ports:
+      - "8080:8080/tcp"
+    networks:
+      default:
+        ipv4_address: ${PYHSS_IP}
+  icscf:
+    image: opensips/opensips:ims-ce
+    container_name: icscf
+    dns: ${DNS_IP}
+    volumes:
+      - ./opensips_ims_icscf:/mnt/icscf
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=icscf-1
+    entrypoint: /mnt/icscf/icscf_init.sh
+    depends_on:
+      - dns
+      - mysql
+      - pyhss
+    expose:
+      - "3869/udp"
+      - "3869/tcp"
+      - "4060/udp"
+      - "4060/tcp"
+    networks:
+      default:
+        ipv4_address: ${ICSCF_IP}
+  scscf:
+    image: opensips/opensips:ims-ce
+    container_name: scscf
+    dns: ${DNS_IP}
+    volumes:
+      - ./opensips_ims_scscf:/mnt/scscf
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=scscf-1
+    entrypoint: /mnt/scscf/scscf_init.sh
+    depends_on:
+      - dns
+      - mysql
+      - pyhss
+    expose:
+      - "3870/udp"
+      - "3870/tcp"
+      - "6060/udp"
+      - "6060/tcp"
+    networks:
+      default:
+        ipv4_address: ${SCSCF_IP}
+  pcscf:
+    image: opensips/opensips:ims-ce
+    container_name: pcscf
+    dns: ${DNS_IP}
+    privileged: true
+    cap_add:
+      - NET_ADMIN
+    volumes:
+      - ./opensips_ims_pcscf:/mnt/pcscf
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=pcscf-1
+      - DEPLOY_MODE=4G
+    entrypoint: /mnt/pcscf/pcscf_init.sh
+    depends_on:
+      - dns
+      - mysql
+      - rtpengine
+      - icscf
+      - scscf
+    expose:
+      - "3871/udp"
+      - "3871/tcp"
+      - "5060/tcp"
+      - "5060/udp"
+      - "5100-5120/tcp"
+      - "5100-5120/udp"
+      - "6100-6120/tcp"
+      - "6100-6120/udp"
+    networks:
+      default:
+        ipv4_address: ${PCSCF_IP}
+  smsc:
+    image: docker_kamailio
+    container_name: smsc
+    dns: ${DNS_IP}
+    volumes:
+      - ./smsc:/mnt/smsc
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=smsc-1
+    depends_on:
+      - dns
+      - mysql
+    expose:
+      - "7090/udp"
+      - "7090/tcp"
+    networks:
+      default:
+        ipv4_address: ${SMSC_IP}
+  osmomsc:
+    build: ./osmomsc
+    image: docker_osmomsc
+    container_name: osmomsc
+    volumes:
+      - ./osmomsc:/mnt/osmomsc
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=osmomsc-1
+    depends_on:
+      - osmohlr
+    expose:
+      - "29118/sctp"
+      - "2775/tcp"
+    networks:
+      default:
+        ipv4_address: ${OSMOMSC_IP}
+  osmohlr:
+    build: ./osmohlr
+    image: docker_osmohlr
+    container_name: osmohlr
+    volumes:
+      - ./osmohlr:/mnt/osmohlr
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    env_file:
+      - .env
+    environment:
+      - COMPONENT_NAME=osmohlr-1
+    expose:
+      - "4222/tcp"
+    networks:
+      default:
+        ipv4_address: ${OSMOHLR_IP}
+  metrics:
+    build: ./metrics
+    image: docker_metrics
+    container_name: metrics
+    env_file:
+      - .env
+    volumes:
+      - ./metrics:/mnt/metrics
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    expose:
+      - "9090/tcp"
+    ports:
+      - "9090:9090/tcp"
+    networks:
+      default:
+        ipv4_address: ${METRICS_IP}
+  grafana:
+    image: grafana/grafana:11.3.0
+    container_name: grafana
+    env_file:
+      - .env
+    volumes:
+      - grafana_data:/var/lib/grafana
+      - ./grafana/:/etc/grafana/provisioning/
+      - ./grafana:/mnt/grafana
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    environment:
+      - GF_SECURITY_ADMIN_USER=${GRAFANA_USERNAME}
+      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_PASSWORD}
+      #- GF_INSTALL_PLUGINS=${GRAFANA_INSTALL_PLUGINS}
+      - GF_PATHS_PROVISIONING=/etc/grafana/provisioning
+      - GF_PATHS_DATA=/var/lib/grafana
+      - METRICS_IP=${METRICS_IP}
+    expose:
+      - "3000/tcp"
+    ports:
+      - "3000:3000/tcp"
+    networks:
+      default:
+        ipv4_address: ${GRAFANA_IP}
+networks:
+  default:
+    ipam:
+      config:
+        - subnet: ${TEST_NETWORK}
+volumes:
+  grafana_data:
+    name: grafana_data
+  mongodbdata: {}
+  dbdata: {}
diff --git a/opensips_ims_icscf/freeDiameter.conf b/opensips_ims_icscf/freeDiameter.conf
new file mode 100644
index 0000000..9ccbb5a
--- /dev/null
+++ b/opensips_ims_icscf/freeDiameter.conf
@@ -0,0 +1,13 @@
+Identity = "icscf.IMS_DOMAIN";
+Realm = "IMS_DOMAIN";
+Port = ICSCF_BIND_PORT;
+ListenOn = "ICSCF_IP";
+SecPort = 0;
+No_SCTP;
+NoRelay;
+
+ConnectPeer = "hss.IMS_DOMAIN" {
+  No_TLS;
+  ConnectTo = "PYHSS_IP";
+  port = PYHSS_BIND_PORT;
+};
diff --git a/opensips_ims_icscf/icscf.dictionary b/opensips_ims_icscf/icscf.dictionary
new file mode 100644
index 0000000..a6e9f04
--- /dev/null
+++ b/opensips_ims_icscf/icscf.dictionary
@@ -0,0 +1,32 @@
+VENDOR 10415 TGPP
+
+ATTRIBUTE Visited-Network-Identifier          600 string     10415
+ATTRIBUTE Public-Identity                     601 string     10415
+ATTRIBUTE Server-Name                         602 string     10415
+
+APPLICATION-AUTH 16777216/10415 3GPP Cx
+
+REQUEST 300 User-Authorization Request
+{
+	Session-Id | REQUIRED | 1
+	Origin-Host | REQUIRED | 1
+	Origin-Realm | REQUIRED | 1
+	Destination-Realm | REQUIRED | 1
+	Vendor-Specific-Application-Id | REQUIRED | 1
+	Auth-Session-State | REQUIRED | 1
+	User-Name | REQUIRED | 1
+	Public-Identity | REQUIRED | 1
+	Visited-Network-Identifier | REQUIRED | 1
+}
+
+ANSWER 300 User-Authorization Answer
+{
+	Session-Id | REQUIRED | 1
+	Origin-Host | REQUIRED | 1
+	Origin-Realm | REQUIRED | 1
+	Destination-Host | OPTIONAL | 1
+	Destination-Realm | OPTIONAL | 1
+	Vendor-Specific-Application-Id | REQUIRED | 1
+	Auth-Session-State | REQUIRED | 1
+	Experimental-Result | REQUIRED | 1
+}
diff --git a/opensips_ims_icscf/icscf_init.sh b/opensips_ims_icscf/icscf_init.sh
new file mode 100755
index 0000000..ac53cf7
--- /dev/null
+++ b/opensips_ims_icscf/icscf_init.sh
@@ -0,0 +1,48 @@
+#!/bin/bash
+
+# BSD 2-Clause License
+
+# Copyright (c) 2020, Supreeth Herle
+# All rights reserved.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+
+# 1. Redistributions of source code must retain the above copyright notice, this
+#    list of conditions and the following disclaimer.
+
+# 2. Redistributions in binary form must reproduce the above copyright notice,
+#    this list of conditions and the following disclaimer in the documentation
+#    and/or other materials provided with the distribution.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+[ ${#MNC} == 3 ] && IMS_DOMAIN="ims.mnc${MNC}.mcc${MCC}.3gppnetwork.org" || IMS_DOMAIN="ims.mnc0${MNC}.mcc${MCC}.3gppnetwork.org"
+
+mkdir -p /etc/opensips
+cp /mnt/icscf/freeDiameter.conf /etc/opensips
+cp /mnt/icscf/icscf.dictionary /etc/opensips
+cp /mnt/icscf/opensips.cfg /etc/opensips
+
+sed -i 's|ICSCF_IP|'$ICSCF_IP'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|PYHSS_IP|'$PYHSS_IP'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|IMS_DOMAIN|'$IMS_DOMAIN'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|PYHSS_BIND_PORT|'$PYHSS_BIND_PORT'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|ICSCF_BIND_PORT|'$ICSCF_BIND_PORT'|g' /etc/opensips/freeDiameter.conf
+
+sed -i 's|ICSCF_IP|'$ICSCF_IP'|g' /etc/opensips/opensips.cfg
+sed -i 's|IMS_DOMAIN|'$IMS_DOMAIN'|g' /etc/opensips/opensips.cfg
+
+# Sync docker time
+#ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
+exec /usr/sbin/opensips -F $@
diff --git a/opensips_ims_icscf/opensips.cfg b/opensips_ims_icscf/opensips.cfg
new file mode 100644
index 0000000..594d9ba
--- /dev/null
+++ b/opensips_ims_icscf/opensips.cfg
@@ -0,0 +1,227 @@
+#
+# OpenSIPS residential configuration script
+#     by OpenSIPS Solutions <team@opensips-solutions.com>
+#
+# This script was generated via "make menuconfig", from
+#   the "Residential" scenario.
+# You can enable / disable more features / functionalities by
+#   re-generating the scenario with different options.#
+#
+# Please refer to the Core CookBook at:
+#      https://opensips.org/Resources/DocsCookbooks
+# for a explanation of possible statements, functions and parameters.
+#
+
+
+####### Global Parameters #########
+
+/* uncomment the following lines to enable debugging */
+#debug_mode=yes
+
+log_level=3
+xlog_level=3
+log_stderror=yes
+log_stdout=yes
+log_facility=LOG_LOCAL0
+
+udp_workers=4
+
+/* uncomment the next line to enable the auto temporary blacklisting of 
+   not available destinations (default disabled) */
+#disable_dns_blacklist=no
+
+/* uncomment the next line to enable IPv6 lookup after IPv4 dns
+   lookup failures (default disabled) */
+#dns_try_ipv6=yes
+
+
+socket=udp:ICSCF_IP:4060
+socket=tcp:ICSCF_IP:4060
+
+alias="icscf.IMS_DOMAIN"
+
+#set module path
+mpath="/usr/lib/x86_64-linux-gnu/opensips/modules"
+
+####### Modules Section ########
+####### http module ######
+loadmodule "httpd.so"
+
+modparam("httpd", "ip", "ICSCF_IP")
+modparam("httpd", "port", 8080)
+
+
+#### SIGNALING module
+loadmodule "signaling.so"
+
+#### StateLess module
+loadmodule "sl.so"
+
+#### Transaction Module
+loadmodule "tm.so"
+modparam("tm", "fr_timeout", 5)
+modparam("tm", "fr_inv_timeout", 30)
+modparam("tm", "restart_fr_on_each_reply", 0)
+modparam("tm", "onreply_avp_mode", 1)
+
+#### Record Route Module
+loadmodule "rr.so"
+/* do not append from tag to the RR (no need for this script) */
+modparam("rr", "append_fromtag", 0)
+
+#### MAX ForWarD module
+loadmodule "maxfwd.so"
+
+#### SIP MSG OPerationS module
+loadmodule "sipmsgops.so"
+
+#### FIFO Management Interface
+loadmodule "mi_fifo.so"
+modparam("mi_fifo", "fifo_name", "/run/opensips/opensips_fifo")
+modparam("mi_fifo", "fifo_mode", 0666)
+
+#### USeR LOCation module
+loadmodule "usrloc.so"
+modparam("usrloc", "nat_bflag", "NAT")
+modparam("usrloc", "working_mode_preset", "single-instance-no-db")
+
+#### REGISTRAR module
+loadmodule "registrar.so"
+modparam("registrar", "tcp_persistent_flag", "TCP_PERSISTENT")
+/* uncomment the next line not to allow more than 10 contacts per AOR */
+#modparam("registrar", "max_contacts", 10)
+
+#### ACCounting module
+loadmodule "acc.so"
+/* what special events should be accounted ? */
+modparam("acc", "early_media", 0)
+modparam("acc", "report_cancels", 0)
+/* by default we do not adjust the direct of the sequential requests.
+   if you enable this parameter, be sure to enable "append_fromtag"
+   in "rr" module */
+modparam("acc", "detect_direction", 0)
+
+loadmodule "proto_udp.so"
+loadmodule "proto_tcp.so"
+
+#### aaa_diameter module
+loadmodule "aaa_diameter.so"
+modparam("aaa_diameter", "fd_log_level", 1) # max amount of logging, quite annoying
+modparam("aaa_diameter", "realm", "IMS_DOMAIN")
+modparam("aaa_diameter", "peer_identity", "hss")
+modparam("aaa_diameter", "aaa_url",
+	"diameter:/etc/opensips/freeDiameter.conf;extra-avps-file:/etc/opensips/icscf.dictionary")
+
+#### JSON module
+loadmodule "json.so"
+
+
+
+####### Routing Logic ########
+
+# main request routing logic
+
+route{
+	xlog("L_INFO", "[$ci] Start route time [$Tf] method ($rm) r-uri ($ru) \n");
+
+	if (!mf_process_maxfwd_header(10)) {
+		send_reply(483,"Too Many Hops");
+		exit;
+	}
+
+	if (has_totag()) {
+
+		# handle hop-by-hop ACK (no routing required)
+		if ( is_method("ACK") && t_check_trans() ) {
+			t_relay();
+			exit;
+		}
+
+		# sequential request within a dialog should
+		# take the path determined by record-routing
+		if ( !loose_route() ) {
+			# we do record-routing for all our traffic, so we should not
+			# receive any sequential requests without Route hdr.
+			send_reply(404,"Not here");
+			exit;
+		}
+
+		if (is_method("BYE")) {
+			# do accounting even if the transaction fails
+			do_accounting("log","failed");
+		}
+
+		# route it out to whatever destination was set by loose_route()
+		# in $du (destination URI).
+		route(relay);
+		exit;
+	}
+
+	# CANCEL processing
+	if (is_method("CANCEL")) {
+		if (t_check_trans())
+			t_relay();
+		exit;
+	}
+
+	# absorb retransmissions, but do not create transaction
+	t_check_trans();
+
+	if (is_method("REGISTER")) {
+		xlog("L_INFO", "[$ci] Received REGISTER for $tu - doing UAR\n");
+
+		$var(payload) = "[
+			{ \"Session-Id\": \"icscf.IMS_DOMAIN;"+$Ts+"."+$Tsm+";"+$pp+"\" },
+			{ \"Origin-Host\": \"icscf.IMS_DOMAIN\" },
+			{ \"Origin-Realm\": \"IMS_DOMAIN\" },
+			{ \"Destination-Realm\": \"IMS_DOMAIN\" },
+			{ \"Vendor-Specific-Application-Id\": [{\"Vendor-Id\": 10415},
+				{\"Auth-Application-Id\": 16777216}]},
+			{ \"Auth-Session-State\": 1 },
+			{ \"User-Name\": \""+$fU+"@"+$fd+"\" },
+			{ \"Public-Identity\": \""+$fu+"\" },
+			{ \"Visited-Network-Identifier\": \"IMS_DOMAIN\" }
+		]";
+
+		$var(rc) = dm_send_request(16777216, 300, $var(payload), $var(rpl_avps));
+		xlog("[$ci] UAA rc: $var(rc), UAA AVPs: $var(rpl_avps)\n");
+
+		$var(server_name) = NULL;
+		$json(rpl_avps) := $var(rpl_avps);
+		for ($var(item) in $(json(rpl_avps)[*])) {
+			$json(item) := $var(item);
+			for ($var(key) in $(json(item.keys)[*])) {
+				if ($var(key) == "Server-Name") {
+					$var(server_name) = $json(item/$var(key));
+					break;
+				}
+			}
+			if ($var(server_name) != NULL)
+				break;
+		}
+
+		if ($var(server_name) == NULL) {
+			xlog("L_ERR", "[$ci] No server available!\n");
+			send_reply(503,"Not available");
+			exit;
+		}
+
+		# relay to S-CSCF
+		xlog("L_INFO", "[$ci] using S-CSCF $var(server_name)\n");
+		$ru = $var(server_name);
+
+		route(relay);
+		exit;
+	}
+
+	send_reply(503,"Not Implemented");
+	exit;
+}
+
+
+route[relay] {
+	if (!t_relay()) {
+		send_reply(500,"Internal Error");
+	}
+	exit;
+}
diff --git a/opensips_ims_pcscf/db/dispatcher b/opensips_ims_pcscf/db/dispatcher
new file mode 100644
index 0000000..7d833c5
--- /dev/null
+++ b/opensips_ims_pcscf/db/dispatcher
@@ -0,0 +1,2 @@
+id(int,auto) setid(int) destination(string) socket(string,null) state(int) probe_mode(int) weight(string) priority(int) attrs(string) description(string) 
+1:1:sip\:172.22.0.41\:5060:null:0:1:1:1:'carrier':'icscf'
diff --git a/opensips_ims_pcscf/db/version b/opensips_ims_pcscf/db/version
new file mode 100644
index 0000000..70753cc
--- /dev/null
+++ b/opensips_ims_pcscf/db/version
@@ -0,0 +1,2 @@
+table_name(string) table_version(int) 
+dispatcher:9
diff --git a/opensips_ims_pcscf/freeDiameter.conf b/opensips_ims_pcscf/freeDiameter.conf
new file mode 100644
index 0000000..8c554f1
--- /dev/null
+++ b/opensips_ims_pcscf/freeDiameter.conf
@@ -0,0 +1,13 @@
+Identity = "pcscf.IMS_DOMAIN";
+Realm = "IMS_DOMAIN";
+Port = PCSCF_BIND_PORT;
+ListenOn = "PCSCF_IP";
+SecPort = 0;
+No_SCTP;
+NoRelay;
+
+ConnectPeer = "pcrf.EPC_DOMAIN" {
+  No_TLS;
+  ConnectTo = "PCRF_IP";
+  port = PCRF_BIND_PORT;
+};
diff --git a/opensips_ims_pcscf/opensips.cfg b/opensips_ims_pcscf/opensips.cfg
new file mode 100644
index 0000000..77bfc85
--- /dev/null
+++ b/opensips_ims_pcscf/opensips.cfg
@@ -0,0 +1,438 @@
+#
+# OpenSIPS residential configuration script
+#     by OpenSIPS Solutions <team@opensips-solutions.com>
+#
+# This script was generated via "make menuconfig", from
+#   the "Residential" scenario.
+# You can enable / disable more features / functionalities by
+#   re-generating the scenario with different options.#
+#
+# Please refer to the Core CookBook at:
+#      https://opensips.org/Resources/DocsCookbooks
+# for a explanation of possible statements, functions and parameters.
+#
+
+
+####### Global Parameters #########
+
+/* uncomment the following lines to enable debugging */
+#debug_mode=yes
+
+log_level=6
+xlog_level=3
+#mem_log=6
+log_stderror=yes
+log_stdout=yes
+log_facility=LOG_LOCAL0
+
+udp_workers=4
+
+/* uncomment the next line to enable the auto temporary blacklisting of
+   not available destinations (default disabled) */
+#disable_dns_blacklist=no
+
+/* uncomment the next line to enable IPv6 lookup after IPv4 dns
+   lookup failures (default disabled) */
+#dns_try_ipv6=yes
+
+dns=no
+
+socket=udp:PCSCF_IP:5060
+socket=tcp:PCSCF_IP:5060
+socket=ipsec:PCSCF_IP:6100,5100
+
+alias="pcscf.IMS_DOMAIN"
+
+
+#set module path
+mpath="/usr/lib/x86_64-linux-gnu/opensips/modules"
+
+####### Modules Section ########
+
+#### SIGNALING module
+loadmodule "signaling.so"
+
+#### StateLess module
+loadmodule "sl.so"
+
+#### Transaction Module
+loadmodule "tm.so"
+modparam("tm", "fr_timeout", 5)
+modparam("tm", "fr_inv_timeout", 30)
+modparam("tm", "restart_fr_on_each_reply", 0)
+modparam("tm", "onreply_avp_mode", 1)
+
+#### Record Route Module
+loadmodule "rr.so"
+/* do not append from tag to the RR (no need for this script) */
+modparam("rr", "append_fromtag", 0)
+
+#### MAX ForWarD module
+loadmodule "maxfwd.so"
+
+#### NATHELPER module
+loadmodule "nathelper.so"
+
+#### SIP MSG OPerationS module
+loadmodule "sipmsgops.so"
+
+#### FIFO Management Interface
+loadmodule "mi_fifo.so"
+modparam("mi_fifo", "fifo_name", "/run/opensips/opensips_fifo")
+modparam("mi_fifo", "fifo_mode", 0666)
+
+#### USeR LOCation module
+loadmodule "usrloc.so"
+modparam("usrloc", "nat_bflag", "NAT")
+modparam("usrloc", "mi_dump_kv_store", 1)
+modparam("usrloc", "working_mode_preset", "single-instance-no-db")
+
+#### REGISTRAR module
+loadmodule "registrar.so"
+modparam("registrar", "tcp_persistent_flag", "TCP_PERSISTENT")
+/* uncomment the next line not to allow more than 10 contacts per AOR */
+#modparam("registrar", "max_contacts", 10)
+
+#### ACCounting module
+loadmodule "acc.so"
+/* what special events should be accounted ? */
+modparam("acc", "early_media", 0)
+modparam("acc", "report_cancels", 0)
+/* by default we do not adjust the direct of the sequential requests.
+   if you enable this parameter, be sure to enable "append_fromtag"
+   in "rr" module */
+modparam("acc", "detect_direction", 0)
+
+#### proto_udp module
+loadmodule "dispatcher.so"
+
+loadmodule "proto_udp.so"
+loadmodule "proto_tcp.so"
+loadmodule "proto_ipsec.so"
+loadmodule "dialog.so"
+
+#### dbtext module
+loadmodule "db_text.so"
+modparam("dispatcher", "db_url", "text:///etc/opensips/db")
+
+#### aaa_diameter module
+loadmodule "aaa_diameter.so"
+modparam("aaa_diameter", "fd_log_level", 0) # max amount of logging, quite annoying
+modparam("aaa_diameter", "realm", "IMS_DOMAIN")
+modparam("aaa_diameter", "peer_identity", "hss")
+modparam("aaa_diameter", "aaa_url",
+	"diameter:/etc/opensips/freeDiameter.conf;extra-avps-file:/etc/opensips/pcscf.dictionary")
+
+modparam("proto_ipsec", "min_spi", 10000)
+modparam("proto_ipsec", "max_spi", 10100)
+#modparam("proto_ipsec", "allowed_algorithms", "hmac-sha-1-96=null")
+
+#### RTPENGINE module
+loadmodule "rtpengine.so"
+modparam("rtpengine", "rtpengine_sock", "udp:RTPENGINE_IP:2223")
+
+
+loadmodule "event_route.so"
+loadmodule "json.so"
+
+
+
+####### Routing Logic ########
+
+# main request routing logic
+
+route{
+	xlog("L_INFO", "[$ci] Start route time [$Tf] method ($rm) r-uri ($ru) \n");
+	set_via_handling("force-rport");
+
+	if (!mf_process_maxfwd_header(10)) {
+		send_reply(483,"Too Many Hops");
+		exit;
+	}
+
+	if (has_totag()) {
+
+		# handle hop-by-hop ACK (no routing required)
+		if ( is_method("ACK") && t_check_trans() ) {
+			t_relay();
+			exit;
+		}
+
+		# sequential request within a dialog should
+		# take the path determined by record-routing
+		if ( !loose_route() ) {
+			# we do record-routing for all our traffic, so we should not
+			# receive any sequential requests without Route hdr.
+			send_reply(404,"Not here");
+			exit;
+		}
+
+		if (is_method("BYE")) {
+			# do accounting even if the transaction fails
+			do_accounting("log","failed");
+			route(session_termination);
+		}
+
+		if (is_method("UPDATE")) {
+			if ($si != "SCSCF_IP")
+				rtpengine_offer("replace-origin");
+			else
+				t_on_reply("rtpengine_answer");
+		}
+
+		# route it out to whatever destination was set by loose_route()
+		# in $du (destination URI).
+		route(relay);
+		exit;
+	}
+
+	# CANCEL processing
+	if (is_method("CANCEL")) {
+		if (t_check_trans())
+			t_relay();
+		exit;
+	}
+
+	# absorb retransmissions, but do not create transaction
+	t_check_trans();
+
+	if (is_method("REGISTER")) {
+		xlog("L_INFO", "[$ci] Received REGISTER for $tu - relaying to I-CSCF\n");
+		append_hf("Path: <sip:term@pcscf.IMS_DOMAIN;lr>\r\n");
+
+		if ($hdr(Security-Client)) {
+			setflag("SEC_AGREE");
+			append_hf("P-Visited-Network-ID: IMS_DOMAIN\r\n");
+		}
+
+		t_on_reply("register_reply");
+	 	route(relay);
+		exit;
+	} else if (is_method("INVITE")) {
+		if (loose_route()) {
+			xlog("L_INFO", "[$ci] Received INVITE for $tu - relaying to S-CSCF ($ru/$du)\n");
+			remove_hf("Security-Verify");
+			if (list_hdr_has_option("Require", "sec-agree"))
+				list_hdr_remove_option("Require", "sec-agree");
+			if (list_hdr_has_option("Proxy-Require", "sec-agree"))
+				list_hdr_remove_option("Proxy-Require", "sec-agree");
+			append_hf("P-Visited-Network-ID: IMS_DOMAIN\r\n");
+			$socket_out = "tcp:PCSCF_IP:5060";
+			$avp(si) = $si;
+			rtpengine_offer("replace-origin");
+		} else {
+			xlog("L_INFO", "[$ci] Received INVITE for $tu - looking up from S-CSCF ($ru/$du/$tu)\n");
+			$rU = $(tU{s.select,0,;});
+			if (!lookup("location")) {
+				xlog("L_ERR", "[$ci] user $rU not found\n");
+				t_reply(404, "Not here");
+				exit;
+			}
+		}
+		route(extract_ip_port);
+		$avp(ip) = $var(ip);
+		$avp(port) = $var(port);
+		$avp(rtcp) = $var(rtcp);
+		$avp(stream) = $(rb{sdp.stream,0});
+		t_on_reply("invite_reply");
+		if (!record_route()) {
+			xlog("L_ERR", "[$ci] Cannot do record_route()\n");
+			t_reply(503, "Internal Error");
+			exit;
+		}
+		if (!create_dialog()) {
+			xlog("L_ERR", "[$ci] Cannot create_dialog()\n");
+			t_reply(503, "Internal Error");
+			exit;
+		}
+
+		if (!t_relay()) {
+			xlog("L_ERR", "[$ci] Cannot relay to $ru/$du\n");
+			t_reply(503, "Internal Error");
+			exit;
+		}
+		exit;
+	}
+
+	send_reply(405,"Method Not Allowed");
+	exit;
+}
+
+
+route[relay] {
+	if (!t_relay()) {
+		send_reply(500,"Internal Error");
+	}
+	exit;
+}
+
+onreply_route[register_reply] {
+	xlog("L_INFO","[$ci] Received REGISTER reply $rs from $si for $tu\n");
+	if (isflagset("SEC_AGREE")) {
+		if ($T_reply_code == 401) {
+			if (ipsec_create())
+				route(dm_send_aar, "control");
+		} else if ($T_reply_code == 200) {
+			if (!save("location", "no-reply, path-off"))
+				xlog("L_ERR", "[$ci] could not save\n");
+		}
+
+	}
+}
+
+onreply_route[invite_reply] {
+
+	if (!has_body_part("application/sdp")) {
+		xlog("L_INFO","[$ci] Received INVITE reply $rs from $si for $tu - without SDP\n");
+		return;
+	} else if (isflagset("INVITE_AAA")) {
+		xlog("L_INFO","[$ci] Received INVITE reply $rs from $si for $tu - AAA done\n");
+		return;
+	}
+	xlog("L_INFO","[$ci] Received INVITE reply $rs from $si for $tu - doing AAR\n");
+	route(extract_ip_port);
+	if ($avp(si) == NULL) {
+		rtpengine_answer("replace-origin");
+		$avp(si) = $si;
+		$var(tmp_ip) = $avp(ip);
+		$var(tmp_port) = $avp(port);
+		$avp(ip) := $var(ip);
+		$avp(port) := $var(port);
+		$var(ip) = $var(tmp_ip);
+		$var(port) = $var(tmp_port);
+	}
+	route(dm_send_aar, "audio");
+	setflag("INVITE_AAA");
+}
+
+onreply_route[rtpengine_answer] {
+	if (!has_body_part("application/sdp"))
+		return;
+	rtpengine_answer("replace-origin");
+}
+
+
+route[dm_send_aar] {
+
+	switch ($param(1)) {
+
+	case "control":
+		if ($ipsec(ip) != NULL) {
+			$var(src_ip) = $ipsec_ue(ip);
+			$var(src_port) = $ipsec_ue(port-c);
+			$var(dst_ip) = $ipsec(ip);
+			$var(dst_port) = $ipsec(port-s);
+			$var(sess_port) = $ipsec_ue(port-s);
+		} else {
+			$var(src_ip) = $si;
+			$var(src_port) = $sp;
+			$var(dst_ip) = $socket_in(ip);
+			$var(dst_port) = $socket_in(port);
+			$var(sess_port) = $sp;
+		}
+		$var(media_component) = "[{\"Media-Component-Number\": 1},
+			{\"Media-Sub-Component\": [{\"Flow-Number\": 1},
+				{\"Flow-Description\": \"permit in ip from "+$var(src_ip)+" "+$var(src_port)+" to "+$var(dst_ip)+" "+$var(dst_port)+"\"},
+				{\"Flow-Description\": \"permit out ip from "+$var(dst_ip)+" "+$var(dst_port)+" to "+$var(src_ip)+" "+$var(src_port)+"\"},
+				{\"Flow-Usage\": 2}]},
+			{\"Media-Type\": 4},
+			{\"Codec-Data\": \"uplink\noffer\n\"},
+			{\"Codec-Data\": \"downlink\nanswer\n\"},
+			{\"Flow-Status\": 2}]";
+		$avp(si) = $var(src_ip);
+		$var(session_id) = $var(src_ip) + ";" + $var(sess_port) + ";pcscf.IMS_DOMAIN;"+$Ts+"."+$Tsm+";"+$pp;
+		break;
+	case "audio":
+		$var(session_id) = "pcscf.IMS_DOMAIN;"+$Ts+"."+$Tsm+";"+$pp;
+		$var(media_component) = "[{\"Media-Component-Number\": 1},
+			{\"Media-Sub-Component\": [{\"Flow-Number\": 1},
+				{\"Flow-Description\": \"permit in 17 from "+$avp(ip)+" "+$avp(port)+" to "+$var(ip)+" "+$var(port)+"\"},
+				{\"Flow-Description\": \"permit out 17 from "+$var(ip)+" "+$var(port)+" to "+$avp(ip)+" "+$avp(port)+"\"},
+				{\"Flow-Description\": \"permit in 17 from "+$avp(ip)+" "+$avp(rtcp)+" to "+$var(ip)+" "+$var(rtcp)+"\"},
+				{\"Flow-Description\": \"permit out 17 from "+$var(ip)+" "+$var(rtcp)+" to "+$avp(ip)+" "+$avp(rtcp)+"\"},
+				{\"Flow-Usage\": 0}]},
+			{\"Media-Type\": 0},
+			{\"Max-Requested-Bandwidth-DL\": 41000},
+			{\"Max-Requested-Bandwidth-UL\": 41000},
+			{\"Codec-Data\": \"uplink\noffer\n"+$avp(stream)+"\"},
+			{\"Codec-Data\": \"downlink\nanswer\n"+$(rb{sdp.stream,0})+"\"},
+			{\"Flow-Status\": 2}]";
+		$dlg_val(session_id) = $var(session_id);
+		break;
+	}
+	$var(payload) = "[
+		{ \"Session-Id\": \""+$var(session_id)+"\" },
+		{ \"Auth-Application-Id\": 16777236 },
+		{ \"Origin-Host\": \"pcscf.IMS_DOMAIN\" },
+		{ \"Origin-Realm\": \"IMS_DOMAIN\" },
+		{ \"Destination-Realm\": \"EPC_DOMAIN\" },
+		{ \"Vendor-Specific-Application-Id\": [{\"Vendor-Id\": 10415},
+			{\"Auth-Application-Id\": 16777236}]},
+		{ \"AF-Application-Identifier\": \"IMS Services\" },
+		{ \"Authorization-Lifetime\": 3600 },
+		{ \"Subscription-ID\": [{\"Subscription-Id-Type\": 2},
+			{\"Subscription-Id-Data\": \""+$fu+"\"}]},
+		{ \"Reservation-Priority\": 0 },
+		{ \"Media-Component-Description\": "+$var(media_component)+"},
+		{ \"Frame-IP-Address\": \""+$avp(si)+"\" },
+		{ \"Specific-Action\": 1 },
+		{ \"Specific-Action\": 2 },
+		{ \"Specific-Action\": 3 },
+		{ \"Specific-Action\": 4 },
+		{ \"Specific-Action\": 5 },
+		{ \"Specific-Action\": 6 },
+		{ \"Specific-Action\": 12 },
+		{ \"Auth-Grace-Period\": 0 },
+		{ \"Session-Timeout\": 3600 }
+	]";
+
+	$var(rc) = dm_send_request(16777236, 265, $var(payload), $var(rpl_avps));
+	xlog("[$ci] AAA rc: $var(rc), AAA AVPs: $var(rpl_avps)\n");
+}
+
+route[session_termination] {
+	if ($si != "SCSCF_IP")
+		rtpengine_delete();
+
+	xlog("L_INFO","[$ci] Received BYE from $si for $tu - doing STR\n");
+
+	$var(payload) = "[
+		{ \"Session-Id\": \""+$dlg_val(session_id)+"\" },
+		{ \"Auth-Application-Id\": 16777236 },
+		{ \"Origin-Host\": \"pcscf.IMS_DOMAIN\" },
+		{ \"Origin-Realm\": \"IMS_DOMAIN\" },
+		{ \"Destination-Realm\": \"EPC_DOMAIN\" },
+		{ \"Vendor-Specific-Application-Id\": [{\"Vendor-Id\": 10415},
+			{\"Auth-Application-Id\": 16777236}]},
+		{ \"AF-Application-Identifier\": \"IMS Services\" },
+		{ \"Termination-Cause\": 1 }
+	]";
+
+	$var(rc) = dm_send_request(16777236, 275, $var(payload), $var(rpl_avps));
+	xlog("[$ci] STA rc: $var(rc), STA AVPs: $var(rpl_avps)\n");
+}
+
+route[extract_ip_port] {
+	$var(ip) = $(rb{sdp.line,c}{s.select,2, });
+	$var(port) = $(rb{sdp.line,m}{s.select,1, });
+	$var(rtcp) = $(var(port){s.int}) + 1;
+}
+
+event_route[E_DM_REQUEST] {
+	if ($param(app_id) == 16777236 && $param(cmd_code) == 274) {
+		$var(ip) = $(param(sess_id){s.select,0,;});
+		$var(port) = $(param(sess_id){s.select,1,;}{s.int});
+		xlog("[diameter] removing $var(ip):$var(port) contact\n");
+		remove_ip_port($var(ip), $var(port), "location");
+		$var(payload) = "[
+			{ \"Vendor-Specific-Application-Id\": [{\"Vendor-Id\": 10415},
+				{\"Auth-Application-Id\": 16777236}]},
+			{ \"Result-Code\": 2001 },
+			{ \"Auth-Session-State\": 0 },
+			{ \"Origin-Host\": \"pcscf.IMS_DOMAIN\" },
+			{ \"Origin-Realm\": \"IMS_DOMAIN\" }
+		]";
+		dm_send_answer($var(payload));
+
+	}
+}
diff --git a/opensips_ims_pcscf/pcscf.dictionary b/opensips_ims_pcscf/pcscf.dictionary
new file mode 100644
index 0000000..f6406d5
--- /dev/null
+++ b/opensips_ims_pcscf/pcscf.dictionary
@@ -0,0 +1,78 @@
+VENDOR 10415 TGPP
+VENDOR 13019 ETSI
+
+ATTRIBUTE Abort-Cause                         500 unsigned32 10415
+ATTRIBUTE AF-Application-Identifier           504 string     10415
+ATTRIBUTE Flow-Description                    507 string     10415
+ATTRIBUTE Flow-Number                         509 unsigned32 10415
+ATTRIBUTE Flow-Status                         511 unsigned32 10415
+ATTRIBUTE Flow-Usage                          512 unsigned32 10415
+ATTRIBUTE Specific-Action                     513 unsigned32 10415
+ATTRIBUTE Max-Requested-Bandwidth-DL          515 unsigned32 10415
+ATTRIBUTE Max-Requested-Bandwidth-UL          516 unsigned32 10415
+ATTRIBUTE Media-Component-Number              518 unsigned32 10415
+ATTRIBUTE Media-Type                          520 unsigned32 10415
+ATTRIBUTE Codec-Data                          524 string     10415
+ATTRIBUTE Media-Sub-Component                 519 grouped    10415
+{
+    Flow-Number | REQUIRED | 1
+    Flow-Usage | REQUIRED | 1
+    Flow-Description | REQUIRED | 9
+}
+
+ATTRIBUTE Media-Component-Description         517 grouped    10415
+{
+    Media-Component-Number | REQUIRED | 1
+    Media-Sub-Component | REQUIRED | 1
+    Media-Type | REQUIRED | 1
+    Max-Requested-Bandwidth-DL | REQUIRED | 1
+    Max-Requested-Bandwidth-UL | REQUIRED | 1
+    Flow-Status | REQUIRED | 1
+}
+ATTRIBUTE IP-CAN-Type                        1027 unsigned32 10415
+ATTRIBUTE RAT-Type                           1032 unsigned32 10415
+
+ATTRIBUTE Subscription-Id-Type                450 unsigned32
+ATTRIBUTE Subscription-Id-Data                444 string
+ATTRIBUTE Subscription-ID                     443 grouped
+{
+    Subscription-Id-Type | REQUIRED | 1
+    Subscription-Id-Data | REQUIRED | 1
+}
+ATTRIBUTE Frame-IP-Address                      8 ip
+ATTRIBUTE Reservation-Priority                458 unsigned32 13019
+
+APPLICATION-AUTH 16777236/10415 3GPP Rx
+
+REQUEST 265 AA Request
+{
+    Session-Id | REQUIRED | 1
+    Auth-Application-Id | REQUIRED | 1
+    Origin-Host | REQUIRED | 1
+    Origin-Realm | REQUIRED | 1
+    Destination-Realm | REQUIRED | 1
+    AF-Application-Identifier | REQUIRED | 1
+    Authorization-Lifetime | REQUIRED | 1
+    Subscription-ID | REQUIRED | 1
+    Specific-Action | REQUIRED | 9
+    Frame-IP-Address | REQUIRED | 1
+    Reservation-Priority | REQUIRED | 1
+    Session-Timeout | OPTIONAL | 1
+    Auth-Grace-Period | OPTIONAL | 1
+}
+#    Vendor-Specific-Application-Id | REQUIRED | 1
+#    Media-Component-Description | REQUIRED | 1
+
+ANSWER 265 AA Answer
+{
+    Session-Id | REQUIRED | 1
+    Auth-Application-Id | REQUIRED | 1
+    Origin-Host | REQUIRED | 1
+    Origin-Realm | REQUIRED | 1
+    Destination-Host | OPTIONAL | 1
+    Destination-Realm | OPTIONAL | 1
+    Result-Code | OPTIONAL | 1
+    Experimental-Result | OPTIONAL | 1
+    IP-CAN-Type | OPTIONAL | 1
+    RAT-Type | OPTIONAL | 1
+}
diff --git a/opensips_ims_pcscf/pcscf_init.sh b/opensips_ims_pcscf/pcscf_init.sh
new file mode 100755
index 0000000..6f7e17c
--- /dev/null
+++ b/opensips_ims_pcscf/pcscf_init.sh
@@ -0,0 +1,60 @@
+#!/bin/bash
+
+# BSD 2-Clause License
+
+# Copyright (c) 2020, Supreeth Herle
+# All rights reserved.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+
+# 1. Redistributions of source code must retain the above copyright notice, this
+#    list of conditions and the following disclaimer.
+
+# 2. Redistributions in binary form must reproduce the above copyright notice,
+#    this list of conditions and the following disclaimer in the documentation
+#    and/or other materials provided with the distribution.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+sh -c "echo 1 > /proc/sys/net/ipv4/ip_nonlocal_bind"
+sh -c "echo 1 > /proc/sys/net/ipv6/ip_nonlocal_bind"
+
+[ ${#MNC} == 3 ] && EPC_DOMAIN="epc.mnc${MNC}.mcc${MCC}.3gppnetwork.org" || EPC_DOMAIN="epc.mnc0${MNC}.mcc${MCC}.3gppnetwork.org"
+[ ${#MNC} == 3 ] && IMS_DOMAIN="ims.mnc${MNC}.mcc${MCC}.3gppnetwork.org" || IMS_DOMAIN="ims.mnc0${MNC}.mcc${MCC}.3gppnetwork.org"
+
+mkdir -p /etc/opensips
+cp /mnt/pcscf/freeDiameter.conf /etc/opensips
+cp /mnt/pcscf/pcscf.dictionary /etc/opensips
+cp /mnt/pcscf/opensips.cfg /etc/opensips
+cp -r /mnt/pcscf/db /etc/opensips
+
+sed -i 's|PCSCF_IP|'$PCSCF_IP'|g' /etc/opensips/opensips.cfg
+sed -i 's|IMS_DOMAIN|'$IMS_DOMAIN'|g' /etc/opensips/opensips.cfg
+sed -i 's|EPC_DOMAIN|'$EPC_DOMAIN'|g' /etc/opensips/opensips.cfg
+sed -i 's|SCSCF_IP|'$SCSCF_IP'|g' /etc/opensips/opensips.cfg
+sed -i 's|RTPENGINE_IP|'$RTPENGINE_IP'|g' /etc/opensips/opensips.cfg
+
+sed -i 's|PCRF_BIND_PORT|'$PCRF_BIND_PORT'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|PCSCF_BIND_PORT|'$PCSCF_BIND_PORT'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|IMS_DOMAIN|'$IMS_DOMAIN'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|EPC_DOMAIN|'$EPC_DOMAIN'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|PCRF_IP|'$PCRF_IP'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|PCSCF_IP|'$PCSCF_IP'|g' /etc/opensips/freeDiameter.conf
+
+# Add static route to route traffic back to UE as there is not NATing
+ip r add ${UE_IPV4_IMS} via ${UPF_IP}
+
+# Sync docker time
+#ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
+exec /usr/sbin/opensips -F $@
diff --git a/opensips_ims_scscf/entrypoint.sh b/opensips_ims_scscf/entrypoint.sh
new file mode 100755
index 0000000..9b3744b
--- /dev/null
+++ b/opensips_ims_scscf/entrypoint.sh
@@ -0,0 +1,53 @@
+#!/bin/bash
+
+# BSD 2-Clause License
+
+# Copyright (c) 2020, Supreeth Herle
+# All rights reserved.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+
+# 1. Redistributions of source code must retain the above copyright notice, this
+#    list of conditions and the following disclaimer.
+
+# 2. Redistributions in binary form must reproduce the above copyright notice,
+#    this list of conditions and the following disclaimer in the documentation
+#    and/or other materials provided with the distribution.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+while ! mysqladmin ping -h ${MYSQL_IP} --silent; do
+	sleep 5;
+done
+
+# Sleep until permissions are set
+sleep 10;
+
+# Create SCSCF database, populate tables and grant privileges
+if [[ -z "`mysql -u root -h ${MYSQL_IP} -qfsBe "SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME='scscf'" 2>&1`" ]];
+then
+	mysql -u root -h ${MYSQL_IP} -e "create database scscf;"
+	mysql -u root -h ${MYSQL_IP} scscf < /usr/share/opensips/mysql/standard-create.sql
+	mysql -u root -h ${MYSQL_IP} scscf < /usr/share/opensips/mysql/dialplan-create.sql
+	SCSCF_USER_EXISTS=`mysql -u root -h ${MYSQL_IP} -s -N -e "SELECT EXISTS(SELECT 1 FROM mysql.user WHERE User = 'scscf' AND Host = '%')"`
+	if [[ "$SCSCF_USER_EXISTS" == 0 ]]
+	then
+		mysql -u root -h ${MYSQL_IP} -e "CREATE USER 'scscf'@'%' IDENTIFIED WITH mysql_native_password BY 'heslo'";
+		mysql -u root -h ${MYSQL_IP} -e "CREATE USER 'scscf'@'$SCSCF_IP' IDENTIFIED WITH mysql_native_password BY 'heslo'";
+		mysql -u root -h ${MYSQL_IP} -e "GRANT ALL ON scscf.* TO 'scscf'@'%'";
+		mysql -u root -h ${MYSQL_IP} -e "GRANT ALL ON scscf.* TO 'scscf'@'$SCSCF_IP'";
+		mysql -u root -h ${MYSQL_IP} -e "FLUSH PRIVILEGES;"
+	fi
+fi
+
+exec /usr/sbin/opensips -F $@
diff --git a/opensips_ims_scscf/freeDiameter.conf b/opensips_ims_scscf/freeDiameter.conf
new file mode 100644
index 0000000..fbeae7f
--- /dev/null
+++ b/opensips_ims_scscf/freeDiameter.conf
@@ -0,0 +1,13 @@
+Identity = "scscf.IMS_DOMAIN";
+Realm = "IMS_DOMAIN";
+Port = SCSCF_BIND_PORT;
+ListenOn = "SCSCF_IP";
+SecPort = 0;
+No_SCTP;
+NoRelay;
+
+ConnectPeer = "hss.IMS_DOMAIN" {
+  No_TLS;
+  ConnectTo = "PYHSS_IP";
+  port = PYHSS_BIND_PORT;
+};
diff --git a/opensips_ims_scscf/opensips.cfg b/opensips_ims_scscf/opensips.cfg
new file mode 100644
index 0000000..cf5875b
--- /dev/null
+++ b/opensips_ims_scscf/opensips.cfg
@@ -0,0 +1,281 @@
+#
+# OpenSIPS residential configuration script
+#     by OpenSIPS Solutions <team@opensips-solutions.com>
+#
+# This script was generated via "make menuconfig", from
+#   the "Residential" scenario.
+# You can enable / disable more features / functionalities by
+#   re-generating the scenario with different options.#
+#
+# Please refer to the Core CookBook at:
+#      https://opensips.org/Resources/DocsCookbooks
+# for a explanation of possible statements, functions and parameters.
+#
+
+
+####### Global Parameters #########
+
+/* uncomment the following lines to enable debugging */
+#debug_mode=yes
+
+log_level=3
+xlog_level=3
+log_stderror=yes
+log_stdout=yes
+log_facility=LOG_LOCAL0
+
+udp_workers=4
+
+/* uncomment the next line to enable the auto temporary blacklisting of
+   not available destinations (default disabled) */
+#disable_dns_blacklist=no
+
+/* uncomment the next line to enable IPv6 lookup after IPv4 dns
+   lookup failures (default disabled) */
+#dns_try_ipv6=yes
+
+
+socket=udp:SCSCF_IP:6060
+socket=tcp:SCSCF_IP:6060
+
+alias="scscf.IMS_DOMAIN"
+
+#set module path
+mpath="/usr/lib/x86_64-linux-gnu/opensips/modules"
+
+####### Modules Section ########
+
+#### MYSQL module
+loadmodule "db_mysql.so"
+
+#### SIGNALING module
+loadmodule "signaling.so"
+
+#### StateLess module
+loadmodule "sl.so"
+
+#### Transaction Module
+loadmodule "tm.so"
+modparam("tm", "fr_timeout", 5)
+modparam("tm", "fr_inv_timeout", 30)
+modparam("tm", "restart_fr_on_each_reply", 0)
+modparam("tm", "onreply_avp_mode", 1)
+
+#### Record Route Module
+loadmodule "rr.so"
+/* do not append from tag to the RR (no need for this script) */
+modparam("rr", "append_fromtag", 0)
+
+#### MAX ForWarD module
+loadmodule "maxfwd.so"
+
+#### SIP MSG OPerationS module
+loadmodule "sipmsgops.so"
+
+#### FIFO Management Interface
+loadmodule "mi_fifo.so"
+modparam("mi_fifo", "fifo_name", "/run/opensips/opensips_fifo")
+modparam("mi_fifo", "fifo_mode", 0666)
+
+#### USeR LOCation module
+loadmodule "usrloc.so"
+modparam("usrloc", "nat_bflag", "NAT")
+modparam("usrloc", "working_mode_preset", "single-instance-no-db")
+
+#### REGISTRAR module
+loadmodule "registrar.so"
+modparam("registrar", "tcp_persistent_flag", "TCP_PERSISTENT")
+modparam("registrar", "attr_avp", "$avp(attr)")
+/* uncomment the next line not to allow more than 10 contacts per AOR */
+#modparam("registrar", "max_contacts", 10)
+
+#### ACCounting module
+loadmodule "acc.so"
+/* what special events should be accounted ? */
+modparam("acc", "early_media", 0)
+modparam("acc", "report_cancels", 0)
+/* by default we do not adjust the direct of the sequential requests.
+   if you enable this parameter, be sure to enable "append_fromtag"
+   in "rr" module */
+modparam("acc", "detect_direction", 0)
+
+loadmodule "proto_udp.so"
+loadmodule "proto_tcp.so"
+
+#### aaa_diameter module
+loadmodule "aaa_diameter.so"
+modparam("aaa_diameter", "fd_log_level", 1) # max amount of logging, quite annoying
+modparam("aaa_diameter", "realm", "IMS_DOMAIN")
+modparam("aaa_diameter", "peer_identity", "hss")
+modparam("aaa_diameter", "aaa_url",
+	"diameter:/etc/opensips/freeDiameter.conf;extra-avps-file:/etc/opensips/scscf.dictionary")
+loadmodule "auth_aka.so"
+modparam("auth_aka", "default_av_mgm", "diameter")
+modparam("auth_aka", "default_qop", "auth,auth-int")
+loadmodule "aka_av_diameter.so"
+modparam("aka_av_diameter", "realm",
+        "scscf.IMS_DOMAIN")
+modparam("aka_av_diameter", "aaa_url",
+	"diameter:/etc/opensips/freeDiameter.conf;extra-avps-file:/etc/opensips/scscf.dictionary")
+
+#### dialplan module
+loadmodule "dialplan.so"
+modparam("dialplan","db_url", "mysql://scscf:heslo@MYSQL_IP/opensips_scscf")
+
+
+#### auth module
+loadmodule "auth.so"
+
+
+
+####### Routing Logic ########
+
+# main request routing logic
+
+route{
+	xlog("L_INFO", "[$ci] Start route time [$Tf] method ($rm) r-uri ($ru) \n");
+
+	if (!mf_process_maxfwd_header(10)) {
+		send_reply(483,"Too Many Hops");
+		exit;
+	}
+
+	if (has_totag()) {
+
+		# handle hop-by-hop ACK (no routing required)
+		if ( is_method("ACK") && t_check_trans() ) {
+			t_relay();
+			exit;
+		}
+
+		# sequential request within a dialog should
+		# take the path determined by record-routing
+		if ( !loose_route() ) {
+			# we do record-routing for all our traffic, so we should not
+			# receive any sequential requests without Route hdr.
+			send_reply(404,"Not here");
+			exit;
+		}
+
+		if (is_method("BYE")) {
+			# do accounting even if the transaction fails
+			do_accounting("log","failed");
+		}
+
+		# route it out to whatever destination was set by loose_route()
+		# in $du (destination URI).
+		route(relay);
+		exit;
+	}
+
+	# CANCEL processing
+	if (is_method("CANCEL")) {
+		if (t_check_trans())
+			t_relay();
+		exit;
+	}
+
+	# absorb retransmissions, but do not create transaction
+	t_check_trans();
+
+	if (is_method("REGISTER")) {
+		xlog("L_INFO", "[$ci] Received REGISTER for $tu - doing authorization\n");
+		if (!aka_www_authorize()) {
+			if (!async(aka_www_challenge(), aka_resume_mar))
+				t_reply(500, "Internal Error");
+			exit;
+		}
+		xlog("L_INFO", "[$ci] Received REGISTER for $tu - authorized, doing SAR\n");
+		$var(payload) = "[
+			{ \"Session-Id\": \"scscf.IMS_DOMAIN;"+$Ts+"."+$Tsm+";"+$pp+"\" },
+			{ \"Origin-Host\": \"scscf.IMS_DOMAIN\" },
+			{ \"Origin-Realm\": \"IMS_DOMAIN\" },
+			{ \"Destination-Realm\": \"IMS_DOMAIN\" },
+			{ \"Vendor-Specific-Application-Id\": [{\"Vendor-Id\": 10415},
+				{\"Auth-Application-Id\": 16777216}]},
+			{ \"Auth-Session-State\": 1 },
+			{ \"User-Name\": \""+$fU+"@"+$fd+"\" },
+			{ \"Public-Identity\": \""+$fu+"\" },
+			{ \"Server-Assignment-Type\": 1 },
+			{ \"User-Data-Already-Available\": 0},
+			{ \"Server-Name\": \"sip:scscf.IMS_DOMAIN:6060\" }
+		]";
+
+		if (!async(dm_send_request(16777216, 301, $var(payload), $var(rpl_avps)), aka_resume_sar)) {
+			t_reply(500, "Internal Error");
+			exit;
+		}
+		exit;
+	} else if (is_method("INVITE")) {
+
+		xlog("L_INFO", "[$ci] Received INVITE for $tu/$ru - checking dialplan\n");
+		loose_route(); # consume preloaded routes
+		if (!record_route()) {
+			xlog("L_ERR", "[$ci] Cannot do record_route()\n");
+			t_reply(503, "Internal Error");
+			exit;
+		}
+		if ($ru =~ "^tel:") {
+			$var(tel_user) = $rU;
+			$var(tel_domain) = $(ru{uri.param,phone-context});
+			$ru = "sip:" + $var(tel_user) + "@" + $var(tel_domain);
+		} else {
+			$rU = $(rU{s.select,0,;});
+		}
+		if (!dp_translate(1, $rU, $var(dialplan))) {
+			xlog("L_ERR", "[$ci] dial $rU not in dialplan\n");
+			t_reply(404, "Unknown user");
+			exit;
+		}
+		xlog("L_INFO", "[$ci] Dial $rU is a $var(dialplan) dialplan\n");
+		switch ($var(dialplan)) {
+		case "USER":
+			xlog("L_INFO", "[$ci] lookup user $rU/$(oU{s.select,0,;})\n");
+			if (!lookup("location")) {
+				xlog("L_ERR", "[$ci] Received INVITE for $tu/$ru not registered - sending to service\n");
+				t_reply(404, "User not found");
+				exit;
+			}
+			break;
+		case "SERVICE":
+			# TODO: handle service
+		case "APPLICATION":
+			# TODO: handle application server
+		default:
+			xlog("L_ERR", "[$ci] unknown $var(dialplan) dialplan\n");
+			t_reply(503, "Unknown dialplan");
+			exit;
+		}
+		if (!t_relay()) {
+			xlog("L_ERR", "[$ci] Cannot relay to $ru\n");
+			t_reply(503, "Internal Error");
+		}
+		exit;
+	}
+
+	send_reply(503,"Not Implemented");
+	exit;
+}
+
+
+route[relay] {
+	if (!t_relay()) {
+		send_reply(500,"Internal Error");
+	}
+	exit;
+}
+
+route[aka_resume_mar] {
+	xlog("L_DBG", "[$ci] MAA rc: $rc\n");
+}
+
+route[aka_resume_sar] {
+	xlog("[$ci] SAA rc: $var(rc), SAA AVPs: $var(rpl_avps)\n");
+	$avp(attr) = $ct.fields(params);
+	append_to_reply("Service-Route: <sip:orig@scscf.IMS_DOMAIN:6060;lr>\r\n");
+	append_to_reply("P-Associated-URI: <$fu>\r\n");
+	if (!save("location", "path-lazy")) {
+		t_reply(503, "Internal Error");
+		exit;
+	}
+}
diff --git a/opensips_ims_scscf/scscf.dictionary b/opensips_ims_scscf/scscf.dictionary
new file mode 100644
index 0000000..8ae2a37
--- /dev/null
+++ b/opensips_ims_scscf/scscf.dictionary
@@ -0,0 +1,105 @@
+VENDOR 10415 TGPP
+
+ATTRIBUTE Visited-Network-Identifier          600 string     10415
+ATTRIBUTE Public-Identity                     601 string     10415
+ATTRIBUTE Server-Name                         602 string     10415
+ATTRIBUTE Mandatory-Capability                604 unsigned32 10415
+ATTRIBUTE Optional-Capability                 605 unsigned32 10415
+ATTRIBUTE Cx-User-Data                        606 string     10415
+ATTRIBUTE 3GPP-SIP-Number-Auth-Items          607 unsigned32 10415
+ATTRIBUTE 3GPP-SIP-Authentication-Scheme      608 utf8string 10415
+ATTRIBUTE 3GPP-SIP-Authenticate               609 hexstring  10415
+ATTRIBUTE 3GPP-SIP-Authorization              610 hexstring  10415
+ATTRIBUTE 3GPP-SIP-Authentication-Context     611 string     10415
+ATTRIBUTE 3GPP-SIP-Item-Number                613 unsigned32 10415
+ATTRIBUTE Server-Assignment-Type              614 unsigned32 10415
+ATTRIBUTE User-Data-Already-Available         624 unsigned32 10415
+ATTRIBUTE Confidentiality-Key                 625 hexstring  10415
+ATTRIBUTE Integrity-Key                       626 hexstring  10415
+
+ATTRIBUTE Primary-Event-Charging-Function-Name        619 string 10415
+ATTRIBUTE Secondary-Event-Charging-Function-Name      620 string 10415
+ATTRIBUTE Primary-Charging-Collection-Function-Name   621 string 10415
+ATTRIBUTE Secondary-Charging-Collection-Function-Name 622 string 10415
+
+ATTRIBUTE 3GPP-SIP-Auth-Data-Item             612 grouped    10415
+{
+    3GPP-SIP-Item-Number | OPTIONAL | 1
+    3GPP-SIP-Authentication-Scheme | OPTIONAL | 1
+    3GPP-SIP-Authenticate | OPTIONAL | 1
+    3GPP-SIP-Authorization | OPTIONAL | 1
+    3GPP-SIP-Authentication-Context | OPTIONAL | 1
+    Confidentiality-Key | OPTIONAL | 1
+    Integrity-Key | OPTIONAL | 1
+}
+
+ATTRIBUTE Charging-Information                618 grouped    10415
+{
+    Primary-Event-Charging-Function-Name | OPTIONAL | 1
+    Secondary-Event-Charging-Function-Name  | OPTIONAL | 1
+    Primary-Charging-Collection-Function-Name | OPTIONAL | 1
+    Secondary-Charging-Collection-Function-Name | OPTIONAL | 1
+}
+
+
+APPLICATION-AUTH 16777216/10415 3GPP Cx
+
+REQUEST 301 Server-Assignment Request
+{
+    Session-Id | REQUIRED | 1
+    Origin-Host | REQUIRED | 1
+    Origin-Realm | REQUIRED | 1
+    Destination-Realm | REQUIRED | 1
+    Vendor-Specific-Application-Id | REQUIRED | 1
+    Auth-Session-State | REQUIRED | 1
+    Public-Identity | REQUIRED | 1
+    Server-Name | REQUIRED | 1
+    User-Name | REQUIRED | 1
+    Server-Assignment-Type | REQUIRED | 1
+    User-Data-Already-Available | REQUIRED | 1
+}
+
+ANSWER 301 Server-Assignment Answer
+{
+    Session-Id | REQUIRED | 1
+    Origin-Host | REQUIRED | 1
+    Origin-Realm | REQUIRED | 1
+    Destination-Host | OPTIONAL | 1
+    Destination-Realm | OPTIONAL | 1
+    Vendor-Specific-Application-Id | REQUIRED | 1
+    Auth-Session-State | REQUIRED | 1
+    User-Name | REQUIRED | 1
+    Cx-User-Data | REQUIRED | 1
+    Charging-Information | OPTIONAL | 1
+    Result-Code | REQUIRED | 1
+}
+
+REQUEST 303 Multimedia-Auth Request
+{
+    Session-Id | REQUIRED | 1
+    Origin-Host | REQUIRED | 1
+    Origin-Realm | REQUIRED | 1
+    Destination-Realm | REQUIRED | 1
+    Vendor-Specific-Application-Id | REQUIRED | 1
+    Auth-Session-State | REQUIRED | 1
+    Public-Identity | REQUIRED | 1
+    3GPP-SIP-Number-Auth-Items | REQUIRED | 1
+    3GPP-SIP-Auth-Data-Item | REQUIRED | 1
+    Server-Name | REQUIRED | 1
+}
+
+ANSWER 303 Multimedia-Auth Answer
+{
+    Session-Id | REQUIRED | 1
+    Origin-Host | REQUIRED | 1
+    Origin-Realm | REQUIRED | 1
+    Destination-Host | OPTIONAL | 1
+    Destination-Realm | OPTIONAL | 1
+    Vendor-Specific-Application-Id | REQUIRED | 1
+    Auth-Session-State | REQUIRED | 1
+    Public-Identity | REQUIRED | 1
+    3GPP-SIP-Number-Auth-Items | REQUIRED | 1
+    3GPP-SIP-Auth-Data-Item | REQUIRED | 1
+    User-Name | REQUIRED | 1
+    Result-Code | REQUIRED | 1
+}
diff --git a/opensips_ims_scscf/scscf_init.sh b/opensips_ims_scscf/scscf_init.sh
new file mode 100755
index 0000000..dcc5846
--- /dev/null
+++ b/opensips_ims_scscf/scscf_init.sh
@@ -0,0 +1,71 @@
+#!/bin/bash
+
+# BSD 2-Clause License
+
+# Copyright (c) 2020, Supreeth Herle
+# All rights reserved.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+
+# 1. Redistributions of source code must retain the above copyright notice, this
+#    list of conditions and the following disclaimer.
+
+# 2. Redistributions in binary form must reproduce the above copyright notice,
+#    this list of conditions and the following disclaimer in the documentation
+#    and/or other materials provided with the distribution.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+[ ${#MNC} == 3 ] && IMS_DOMAIN="ims.mnc${MNC}.mcc${MCC}.3gppnetwork.org" || IMS_DOMAIN="ims.mnc0${MNC}.mcc${MCC}.3gppnetwork.org"
+
+mkdir -p /etc/opensips
+cp /mnt/scscf/freeDiameter.conf /etc/opensips
+cp /mnt/scscf/scscf.dictionary /etc/opensips
+cp /mnt/scscf/opensips.cfg /etc/opensips
+
+while ! mysqladmin ping -h ${MYSQL_IP} --silent; do
+	sleep 5;
+done
+
+# Sleep until permissions are set
+sleep 10;
+
+# Create SCSCF database, populate tables and grant privileges
+if [[ -z "`mysql -u root -h ${MYSQL_IP} -qfsBe "SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME='opensips_scscf'" 2>&1`" ]];
+then
+	mysql -u root -h ${MYSQL_IP} -e "create database opensips_scscf;"
+	SCSCF_USER_EXISTS=`mysql -u root -h ${MYSQL_IP} -s -N -e "SELECT EXISTS(SELECT 1 FROM mysql.user WHERE User = 'opensips_scscf' AND Host = '%')"`
+	if [[ "$SCSCF_USER_EXISTS" == 0 ]]
+	then
+		mysql -u root -h ${MYSQL_IP} -e "CREATE USER 'opensips_scscf'@'%' IDENTIFIED WITH mysql_native_password BY 'heslo'";
+		mysql -u root -h ${MYSQL_IP} -e "CREATE USER 'opensips_scscf'@'$SCSCF_IP' IDENTIFIED WITH mysql_native_password BY 'heslo'";
+		mysql -u root -h ${MYSQL_IP} -e "GRANT ALL ON opensips_scscf.* TO 'opensips_scscf'@'%'";
+		mysql -u root -h ${MYSQL_IP} -e "GRANT ALL ON opensips_scscf.* TO 'opensips_scscf'@'$SCSCF_IP'";
+		mysql -u root -h ${MYSQL_IP} -e "FLUSH PRIVILEGES;"
+	fi
+fi
+
+sed -i 's|SCSCF_IP|'$SCSCF_IP'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|PYHSS_IP|'$PYHSS_IP'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|IMS_DOMAIN|'$IMS_DOMAIN'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|PYHSS_BIND_PORT|'$PYHSS_BIND_PORT'|g' /etc/opensips/freeDiameter.conf
+sed -i 's|SCSCF_BIND_PORT|'$SCSCF_BIND_PORT'|g' /etc/opensips/freeDiameter.conf
+
+sed -i 's|SCSCF_IP|'$SCSCF_IP'|g' /etc/opensips/opensips.cfg
+sed -i 's|IMS_DOMAIN|'$IMS_DOMAIN'|g' /etc/opensips/opensips.cfg
+sed -i 's|MYSQL_IP|'$MYSQL_IP'|g' /etc/opensips/opensips.cfg
+
+# Sync docker time
+#ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
+exec /usr/sbin/opensips -F $@