SIP INVITE with SDP (CUCM 7.1(2))

Answered Question

Hi all,

Regarding Cisco docs:

Cisco Unified Communications Manager follows the procedures that are described in RFC 3261, 3262,

and 3264 to establish and clear down basic SIP calls. Often, on the outgoing side, Cisco Unified

Communications Manager will send out INVITE without SDP. This allows Cisco Unified

Communications Manager to discover the capabilities of both sides and provide media services in

between if necessary (for example, transcoding).

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/sip_msg/line_std/7_0_1/siplst70.pdf

Does it possible to configure CUCM to send INVITE with SDP ?

I have this problem too.
0 votes
Correct Answer by DmytroSoloviov about 7 years 2 months ago

Hi.

Go to "Trunk Configuration -> SIP Information" frame and change the value of "MTP Preferred Originating Codec" parameter.

WBR,

Dmytro

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Correct Answer
DmytroSoloviov Fri, 09/11/2009 - 03:58

Hi.

Go to "Trunk Configuration -> SIP Information" frame and change the value of "MTP Preferred Originating Codec" parameter.

WBR,

Dmytro

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