Eric wrote: > The issue was the Polycom default setting of 127 for > tone.dtmf.rfx2833Payload. There should be no problem (per the > spec) negotiating 127 and the SDP headers in the INVITE and > the OK seem correct (to my eye and wireshark's decoders > concur), but it ends up not working though voip.ms (or to a > linksys SPA3102 FXO) reliably. > > If I override the default sipXecs setting of 127 to 101 > voip.ms calls work fine (and the SPA3102 FXO DTMF works as well).
Polycom changed the tone.dtmf.rfc2833Payload default value from 101 to 127 in firmware 3.2.0. I seem to remember that it was because some other endpoint/server wanted to use 101 for video, and was unable to handle negotiating it. -Paul [email protected] _______________________________________________ sipx-dev mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-dev Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-dev sipXecs IP PBX -- http://www.sipfoundry.org/
