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Community Member

SDP Media Attributes issue SIP

Hi,

When i make a call using SIP X-Lite SoftPhone to a hardphone behind Cisco Router + PBX i am getting a media attribute which is causing trouble. How do i get CN/8000 Media Filed in the Media Attribute removed ??

c=IN IP4 172.16.13.87

a=rtpmap:0 PCMU/8000

PCMU/8000 is G711ulaw.

a=rtpmap:19 CN/8000

a=ptime:20

-Tx

3 REPLIES
Hall of Fame Super Gold

Re: SDP Media Attributes issue SIP

Hi,

What is the other end-point ? X-lite is know to work with cisco.

If need something changed in X-lite you have to check with counterpath

Community Member

Re: SDP Media Attributes issue SIP

hi,

x-lite softphone<--IP-->SIP Server<--IP-->Cisco Voice Gateway Router<--E1-->PBX<--4Wire-->Digital TDM Phone

The SDP & Attributes for Media is coming from Cisco Router, so no changes are required from X-lite

Rgds

Sarva

Hall of Fame Super Gold

Re: SDP Media Attributes issue SIP

Hi,

I guess you are referring to the SDP part present in calls from "cisco voice gateway router" to x-lite.

In fact it is correct that the router is presenting these and in my expereince X-lite has no problem in answering the call as long PCM codec is configured in there.

Hope this helps, please rate post if it does!

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