Re: [SR-Users] SDP Codec not removed with RTPengine - but with rtpproxy it worked

Hello,

are you executing rtpengine_manage() before or after removing the codec?

Cheers, Daniel

On 16/11/16 10:03, Oliver Roth wrote:

Hi there

I have the following problem – I need to remove a codec in the initial INVITE.

This happens since I changed from rtpproxy to rtpengine. I changed all rtpproxy_manage() to rtpengine_manage().

Originating INVITE with the “clearmode”

m=audio 9196 RTP/AVP 8 0 125 101

a=rtpmap:0 PCMU/8000

a=rtpmap:8 PCMA/8000

a=rtpmap:125 CLEARMODE/8000

a=rtpmap:101 telephone-event/8000

I do the following in the config

route[SDP] {

            xlog(, "L_INFO", "SDP: request method $rm");



            # remove CLEARMODE if Colt

                           if($avp(s:todirection) =~"^MyCarrier+") {



                           if (is_method("INVITE")) {

                                           xlog(, "L_INFO", "SDP

remove: request method $rm");

                                           msg_apply_changes();

sdp_remove_codecs_by_name("CLEARMODE");

#sdp_remove_codecs_by_id("125");

                           }

            }

}

This block gets hit as I can see with the xlog entry.

In the sent INVITE the “Clearmode” is still in the sdp header

a=rtpmap:0 PCMU/8000

a=rtpmap:8 PCMA/8000

a=rtpmap:125 CLEARMODE/8000

a=rtpmap:101 telephone-event/8000

So with rtpproxy – it worked

With rtpengine not any more …

Any idea?

KR,

Oli

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