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</o:shapelayout></xml><![endif]--></head><body lang=FR link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=EN-GB>Hello,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>I have an issue with the module SDPOPS while using “sdp_keep_codecs_by_name”.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>If the calling party sends only one codec description like:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>Content-Type: application/sdp<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>Content-Length: 202<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>v=0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>o=UserA 2966746938 1790378070 IN IP4 10.141.0.21<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>s=Session SDP<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>c=IN IP4 10.141.0.21<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>t=0 0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>m=audio 49152 RTP/AVP 8 101<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>a=rtpmap:8 PCMA/8000<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>a=rtpmap:101 telephone-event/8000<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>a=fmtp:101 0-15<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>The result of the function “sdp_keep_codecs_by_name("PCMA,PCMU,G729a");” is:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>Content-Type: application/sdp<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>Content-Length: 170<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>P-Asserted-Identity: "+0123456789" <sip:+0123456789@sip.tld><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>v=0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>o=UserA 2485672881 3000549892 IN IP4 a.b.c.d<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>s=Session SDP<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>c=IN IP4 a.b.c.d<o:p></o:p></span></p><p class=MsoNormal>t=0 0<o:p></o:p></p><p class=MsoNormal>m=audio 40330 RTP/AVP 8<o:p></o:p></p><p class=MsoNormal><span lang=EN-GB>a=rtpmap:8 PCMA/8000<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>a=nortpproxy:yes<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>If I open the capture in Wireshark, the PAI is not in the SDP part, and the end of the capture after “a=rtpmap:8 PCMA/8000” is seen as “Data (18 bytes)”.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>I don’t understand why the PAI is inserted within the SDP part. Adding the PAI is done after “sdp_keep_codecs_by_name”:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB> if (!is_present_hf("P-Asserted-Identity")) {<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB> </span>$var(pai) = $(fU{re.subst,/^0/+33/g});<o:p></o:p></p><p class=MsoNormal> <span lang=EN-GB>append_hf("P-Asserted-Identity: \"$var(pai)\" <sip:$var(pai)@$fd>\r\n");<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB> }<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>I guess that this cause my INVITE being dropped by 488 Media Not Acceptable Here.<br><br>Regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>Igor.<o:p></o:p></span></p></div></body></html>