Hi, From the log it is clear that the gateway does not support RFC2833 (=outband) dtmf signaling, since it does not set "telephone-event" codec in the SDP message attached to the "200 OK" answer.
Unfortunately linphone does not support in-band dtmfs, and this is not planned since this method is clearly not recommended for voice over IP. I think you should report this problem to the gateway's administrator. This is really an important missing feature. Simon Le Sunday 14 October 2007 21:09:07 Michael R. Hines, vous avez écrit : > Here's some more followup information: > > 1. Kphone's DTMF does work with viatalk. It's tone is a lot longer > when pressed (suggesting tone length matters), but I'm not exactly familiar > with that. > > 2. My linksys pap2T device only works when I select "in-band" in the > settings. This suggests that viatalk does not properly support out-of-band > signaling. (This also suggests that kphone uses in-band signaling, as I can > arbitrarily hold down the DTMF tone for as long as I want.) > > 3. I've attached a sample (failing DTMF) log file from linphone to a sample > 1-800 number that requires DTMF interaction. > > For now I'm using kphone, but I like linphone's UI better. > > I'd be happy to provide anymore information > that would help track down the problem. > > - Michael > > Simon Morlat wrote: > > Le Sunday 07 October 2007 12:27:10 [EMAIL PROTECTED], vous avez écrit : > >> Ashok Hirpara: > >>> It is working for me using RTP RFC2883. I don't know much about it > >>> using SIP INFO > >> > >> Here (using RTP RFC2883 also) sometimes it works, and sometimes it > >> doesn't. > > > > Maybe the DTMF sound from the speakers is echoed back to the server, > > causing sometimes a correct recognition. > > I doubt this gateway is really supporting telephone-event. (to be checked > > with the log) > > > > Simon > > > > > > > > _______________________________________________ > > Linphone-users mailing list > > [email protected] > > http://lists.nongnu.org/mailman/listinfo/linphone-users _______________________________________________ Linphone-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/linphone-users
