[cisco-voip] No SDP in INVITE to basic SIP endpoint.

[Alex Sayegh]

It may have to do with "early offer" vs "Delay offer" which are two different ways SIP negotiates with the other end. If I recall correctly the Early one was Cisco's recommended

Adam Frankel wrote: 
> You must check "MTP Required" on the endpoint and reset the device to have the SDP Info in the INVITE.  You'll also need to make sure the MRGL assigned to the device has a MTP which supports the necessary codecs for your Region configuration.
> Adam
> -------- Original Message  --------
> Subject: [cisco-voip] No SDP in INVITE to basic SIP endpoint.
> From: Robert Kulagowski <rkulagow at gmail.com>
> To: cisco-voip at puck.nether.net <cisco-voip at puck.nether.net>
> Date: 9/23/09 5:01 PM
> I'm evaluating a SIP paging server from Cyberdata.  I've configured it per
> the docs,
> (http://www.cyberdata.net/support/server/documentation/930280A_VoIP_Ceiling_Speaker_Cisco_Call_Manager_Server_Setup_Guide.pdf) 
> and the paging server registers with CM.  However, when I call the DN, the
> caller hears a ring, then error.
> From the captures and from the support folks at Cyberdata, there's no SDP
> information in the INVITE.
> SIP endpoints are new to me, so any clues on where to start looking?
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