> Jaroslav was unclear here - sipXtapi *do* support RFC2833 DTMF signalling.>
> It does not support in band DTMF, that is DTMF sent inside audio stream.
I'm a bit confused about the difference. Are there two methods of sending DTMF
signals defined in rfc2833?
Here is a quote from my contact at Alcatel:
<quote>
At this moment we do not support DTMF codes directly in SIP protocol.It is
planned to be implemented in SIP Info in future version (maybe next year).What
is supported today is RFC2833 with for example DTMF codes in RTP frames (after
negociation).</quote>
Does this mean that their implementation uses DTMF in audio stream? Again, I
apologize for my ignorance, as I stated previously then this is all quite new
to me.
> What is deviceID you're talking about? I'm not sure I understand what are>
> you trying to do with devices. Do you have some special hardware that>
> support recording with replay and rewind?
I'm just using some windows sound device, which apparently has a unique
identifier. There is no additional hardware involved, just software (which uses
the BASS library internally).
Regards,
Daníel
> Date: Fri, 11 May 2007 13:48:30 +0400> From: [EMAIL PROTECTED]> To: [EMAIL
> PROTECTED]> Subject: Re: [sipxtapi-dev] Multiple simultaneous calls to the
> same number> CC: [EMAIL PROTECTED]; [email protected]> > On
> 5/11/07, Daniel Sigurgeirsson <[EMAIL PROTECTED]> wrote:> > > It's also
> important to know, how will DTMF be sent to the application,> > whether in
> SIP INFO messages, or in RTP as described in rfc2833. If it's> > sent in RTP,
> then sipxtapi can't detect it right now, as there is no such> >
> functionality.> >> > That's too bad, since the Alcatel PBX doesn't support
> DTMF through SIP INFO> > messages, only through RFC2833. I just got this
> confirmed from my source at> > Alcatel.> > Jaroslav was unclear here -
> sipXtapi *do* support RFC2833 DTMF signalling.> It does not support in band
> DTMF, that is DTMF sent inside audio stream.> > > Regarding voice recording,
> then I have already implemented that, as long as> > I can figure out the
> deviceID of the incoming voice. If that works then I> > can support pausing,
> rewinding etc. My thoughts on that matter are: if I use> > the main recording
> device for all calls, wouldn't they interfere with each> > other?> > What is
> deviceID you're talking about? I'm not sure I understand what are> you trying
> to do with devices. Do you have some special hardware that> support recording
> with replay and rewind?> > -- > Regards,> Alexander Chemeris.> > SIPez LLC.>
> SIP VoIP, IM and Presence Consulting> http://www.SIPez.com> tel: +1 (617)
> 273-4000
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