Prerequisites enabling SIP Direct Media

Last Updated : Oct 06, 2016 |

  • The call originator is SIP.

    If the call originator is not SIP, Communication Manager does not apply SIP Direct Media to the call.

  • The following fields in the SIP signaling group screen of the originating SIP User Agent (UA) is set to y:

    • Direct IP-IP Audio Connections

    • Initial IP-IP Direct Media

  • The call-originating party does not have a call on hold.

  • If Media Encryption Over IP is y on the system-parameters customer-options screen (page 4), set SDP Capability Negotiation for SRTP to y on the system-parameters features screen (page 19).

Note:

If you do not meet with the prerequisites for SIP Direct Media, Communication Manager allocates media processors and shuffles the call after the connection is established.