1. Configuration Guide
  2. Local Media Playback
  3. Supported Playback Scenarios when using ACLI

Supported Playback Scenarios when using ACLI

This section lists playback scenario triggers supported by the Oracle Communications Session Border Controller (OCSBC) for deployments using the ACLI-only method of configuration. When more than one trigger appears, the OCSBC acts on the trigger configuration closest to the playback endpoint.

These scenarios are defined by the ringback-trigger parameter you configure for session agents, realms, and SIP interfaces:

  • none—The OCSBC does not perform local media playback procedures for this configuration. Based on precedence, however, the OCSBC may issue playback based on other element configurations, if any. Local media playback follows the precedence session-agent, realm, then sip-interface.
  • disabled— The OCSBC does not perform media playback procedures on this flow, regardless of ensuing configurations.
  • 180-no-sdp—The OCSBC starts local media playback to the caller when a 180 is received without SDP, and a 18x with SDP has not yet been received. The OCSBC stops the playback:
    • On the final response, or
    • When the OCSBC receives an UPDATE with SDP from the callee.
  • 180-force—The OCSBC starts local media playback to the caller when a 180 is received regardless of whether it includes SDP. The OCSBC stops the playback:
    • On the final response, or
    • When the OCSBC receives an UPDATE with SDP from the callee.
  • 183—The OCSBC starts local media playback to caller when 183 is sent to call originator. The OCSBC stops the playback on the final response (either 2xx success or 4xx error). Configure this 183 value on the original INVITE ingress realm/sip-interface/session-agent.
  • refer—The OCSBC starts local media playback to the referee when it receives a REFER. This trigger operates only if the OCSBC actually terminates and performs the refer operation. If the REFER is via proxy, playback is not a triggered. Playback stops when the refer operation is complete with a final response (200-299 or 400-699). Configure this refer value on the ingress realm/sip-interface/session-agent of the transferred call.
  • 183-and-refer—The OCSBC starts local media playback when both 183 and refer triggers are activated.

Playback triggers you configure when using the SPL method are different, and are presented in Supported Playback Scenarios when using SPL. You configure those triggers within the context of SPL options.