chan_sip Channel Variables

• ${SIPCALLID} * - SIP Call-ID: header verbatim (for logging or CDR matching)
• ${SIPDOMAIN} * - SIP destination domain of an inbound call (if appropriate)
• ${SIPFROMDOMAIN} - Set SIP domain portion of From header on outbound calls
• ${SIPUSERAGENT} * - SIP user agent (deprecated)
• ${SIPURI} * - SIP uri
• ${SIP_MAX_FORWARDS} - Set the value of the Max-Forwards header for outbound call
• ${SIP_CODEC} - Set the SIP codec for an inbound call
• ${SIP_CODEC_INBOUND} - Set the SIP codec for an inbound call
• ${SIP_CODEC_OUTBOUND} - Set the SIP codec for an outbound call
• ${SIP_URI_OPTIONS} * - additional options to add to the URI for an outgoing call
• ${RTPAUDIOQOS} - RTCP QoS report for the audio of this call
• ${RTPVIDEOQOS} - RTCP QoS report for the video of this call