OpenSIPS SBC - Community Edition - Components

The platform is composed of the following containers:

• mysql: MySQL database server; used to store OpenSIPS data;

  • ports: 3306 (configurable via MYSQL_PORT in .env)
  • only listens on 127.0.0.1 and HOST_IP, so it is accessible from the host and from other machines on the same local network; use MYSQL_USER, MYSQL_PASSWORD and MYSQL_DATABASE from .env to connect

• opensips: OpenSIPS SIP server; handles all SIP signaling — registration, call routing, topology hiding, NAT traversal, dialplan translation, and PSTN routing

  • ports: 57306 (UDP and TLS, configurable via OPENSIPS_PORT in .env), 8888 (Management Interface)
  • listens on OPENSIPS_IP, which should be set to the host's public IP address if available, or the private IP for local deployments
  • port 8888 (Management Interface) is bound to HOST_IP, so it is accessible only from the host or from other machines on the same local network (e.g. using opensips-cli)

• opensips-cp: OpenSIPS Control Panel; web interface for managing the SBC

  • ports: 80 (listens on all interfaces)
  • accessible at http://localhost/cp with default credentials admin:opensips

• rtpengine: RTP media relay; anchors RTP streams, handles media NAT traversal and SDP rewriting

  • ports: 12222 (control port, bound to RTPENGINE_IP — private interface), 30000-30100 (RTP media ports, bound to RTPENGINE_PUBLIC_IP — public interface; configurable via MINPORT/MAXPORT)