[mythtv] MythPhone and DTMF

[Christophe Guerin]

Le mardi 21 juin 2005 à 23:13 +0100, Paul Volkaerts a écrit :
> > I'm testing MythPhone and an Asterisk server. Until now, all work well.
> > The problem is when I'm calling, I can't send DTMF signal. I mean I
> > heard the sound in MythPhone, but the Asterisk console show that the
> > server didn't receive the DTMF signal. I tried to change the DTMF mode
> > in the Asterisk configuration (inband, rfc2833, info) but nothing
> > change. I tried to change the audio compression as well in ulaw for
> > instance, but nothing.
> > Without sending DTMF signals I can't retrieve the voicemail.
> >
> > Does somebody already encounter this problem and fix it ?
> 
> I just ran a quick test and it seemed to work though my test was very quick.
> MythPhone uses RFC2833 so Asterisk should be configured as that.  It also
> needs to negotiate it during call setup. Can you take a look at the log file
> in ~/.mythtv/MythPhone/siplog.txt.   You will have to make a call, clear it,
> then exist Mythfrontend to ensure the log file is flushed from cache to
> disk.
> 
> Check for a line in the INVITE that looks like "a=rtpmap:101
> telephone-event/8000", and check this line also appears in the 180 or 200 OK
> response.   (The "101" value may be different, the important thing is the
> telephone-event).

Actually, the line looks like that:
a=rtpmap:101 telephone-event/8000

But no apparition in the 180 or 200.