Hi Stefan, thanks, i will try that next week!
Carsten 2011/8/17 Stefan Sayer <[email protected]>: > Hi, > > this is now fixed in both master and 1.4; it will add the missing a= lines > from the IANA rtp-parameters list and filter also those codecs' in the SDP > properly. > > Stefan > > o Carsten Bock on 08/10/2011 03:45 PM: >> >> Hi, >> >> next question: I receive the following SDP from a device (FritzBox 7170)): >> >> m=audio 7078 RTP/AVP 8 0 2 102 100 99 97 101. >> a=rtpmap:2 G726-32/8000. >> a=rtpmap:102 G726-32/8000. >> a=rtpmap:100 G726-40/8000. >> a=rtpmap:99 G726-24/8000. >> a=rtpmap:97 iLBC/8000. >> a=fmtp:97 mode=30. >> a=rtpmap:101 telephone-event/8000 >> >> (=> Note: No a= lines for PCMA/PCMU, should not be necessary) >> >> I've set in my sbc-profile the following: >> >> sdpfilter_list=g722,pcma,pcmu,g729,telephone-event >> >> This produces the following on the other leg: >> >> m=audio 7078 RTP/AVP 101. >> a=rtpmap:101 telephone-event/8000 >> >> Surprisingly my Gateway cannot accept only DTMF-Calls... ;-) >> Shouldn't the SBC keep G711a/u in the codec list? The codecs are >> "standard codecs" according to RFC1890, so it should not be necessary >> to describe them further. >> Is there a "nice" way to fix this? Otherwise i will dig into the code >> and see what i can do.... >> >> Carsten >> >> 2011/8/8 Carsten Bock<[email protected]>: >>> >>> Hi, >>> >>> thanks for the advice. I will take a look at the code. >>> I know, that " a=silenceSupp:off - - - -" is correct to the standards, >>> i've just seen some buggy gateways which omitted the "- - - -" and >>> made some Cisco-Gateways fail.... >>> >>> Carsten >>> >>> 2011/8/4 Stefan Sayer<[email protected]>: >>>> >>>> Hi, >>>> >>>> o Carsten Bock on 08/04/2011 12:22 PM: >>>>> >>>>> Hi, >>>>> >>>>> short question: >>>>> In the codecfilter.sbcprofile.conf-Example it says the following: >>>>> >>>>> # sdp_filter can be transparent,whitelist or blacklist >>>>> # - leave empty (commented) for no touching SDP >>>>> # - transparent does SDP reconstruction ('sanity check') >>>>> # - whitelist and blacklist filter codec on both sides >>>>> >>>>> If set to transparent or whitelisting, is the SDP really >>>>> re-constructed? I've noticed, that the session-name (s=) is passed >>>>> through as well as the "o="-lines. >>>> >>>> yes, it is 'reconstructed', which means parsed by the SDP parser and >>>> then >>>> rebuilt by SDP generator. The parser takes over both s and o SDP >>>> attributes. >>>> >>>>> What about other attributes? I wonder, if a gateway sends me buggy >>>>> "a=silenceSupp:off - - - -" lines, is it passed through as well? I >>>>> know some Cisco-Gateways will not connect that call, if the >>>>> "a=silenceSupp:off" is incorrect according to the standards. >>>> >>>> hm, isn't this line: >>>> a=silenceSupp:off - - - - >>>> correct according to RFC3108? >>>> >>>> just fyi, if this needs to be sanitized in a way, the code would need to >>>> go >>>> into SDPFilter.cpp (checking media.attributes). >>>> >>>>> By the way: Is there an easy way to add a "own" music-on-hold >>>>> announcement, if a call through the SBC is put on hold? >>>> >>>> no, not yet. >>>> >>>> Stefan >>>> >>>>> >>>>> Thanks, >>>>> Carsten >>>>> >>>>> v=0. >>>>> o=root 2018628531 2018628531 IN IP4 46.252.21.133. >>>>> s=sipgate VoIP GW. >>>>> c=IN IP4 46.252.21.133. >>>>> t=0 0. >>>>> m=audio 30218 RTP/AVP 8 0 3 127. >>>>> a=rtpmap:8 PCMA/8000. >>>>> a=rtpmap:0 PCMU/8000. >>>>> a=rtpmap:3 GSM/8000. >>>>> a=rtpmap:127 telephone-event/8000. >>>>> a=fmtp:127 0-16. >>>>> a=silenceSupp:off - - - -. >>>>> a=ptime:20. >>>>> a=sendrecv. >>>>> a=nortpproxy:yes. >>>>> >>>>> >>>> >>>> >>>> -- >>>> frafos.com >>>> >>> >>> >>> >>> -- >>> Carsten Bock >>> http://www.ng-voice.com >>> mailto:[email protected] >>> >>> Schomburgstr. 80 >>> 22767 Hamburg >>> Germany >>> >>> Mobile +49 179 2021244 >>> Office +49 40 34927219 >>> Fax +49 40 34927220 >>> >>> ~~~~~~~~~~~~~~~~~~~~ >>> Upcoming Events: "10 years of SER" in Berlin on September 2nd, 2011 (@ >>> Fraunhofer Institute, Berlin): >>> http://sip-router.org/10-years-ser/ >>> >> >> >> > > > -- > frafos.com > -- Carsten Bock http://www.ng-voice.com mailto:[email protected] Schomburgstr. 80 22767 Hamburg Germany Mobile +49 179 2021244 Office +49 40 34927219 Fax +49 40 34927220 ~~~~~~~~~~~~~~~~~~~~ Upcoming Events: "10 years of SER" in Berlin on September 2nd, 2011 (@ Fraunhofer Institute, Berlin): http://sip-router.org/10-years-ser/ _______________________________________________ Sems mailing list [email protected] http://lists.iptel.org/mailman/listinfo/sems
