[Freeswitch-users] send_dtmf problems

Michael Jerris mike at jerris.com
Tue Jul 15 09:48:35 PDT 2008


You could also use the inband dtmf generator and queue_dtmf.

Mike

On Jul 15, 2008, at 9:45 AM, Anthony Minessale wrote:

> there is no way to do both inband and info/2833 from within sip.
>
> inband dtmf is not part of the SIP module it's part of the core.
>
> you can generate an inband dtmf stream with gentones app or the  
> tone_stream:// file stream.
>
> <action application="gentones" data="1234567890"/>
> or
> <action application="playback" data="tone_stream://1234567890"/>
>
> On Tue, Jul 15, 2008 at 3:29 AM, John Wehle <john at feith.com> wrote:
> > Try a sleep after the answer.
>
> Will do ... just curious as to why and for how long?
>
> >> 1) When I dial the extension from a Grandstream GXP-2000 ...
> >> How do I configure FreeSWITCH to send both RTP digits and inband  
> audio?
> > The VoIP phone has no reason to reproduce any DTMF.
>
> I understand that the VoIP phone has no reason to create DTMF tones  
> from
> the RTP digits sent by FreeSWITCH.  What I was asking is how to you
> configure FreeSWITCH to generate inband DTMF tones in addition to
> the RTP digits.
>
> I.e. this particular phone can be configured to send DTMF digits to
> FreeSWITCH as any combination of inband audio, RTP digits, and / or
> SIP info.   Going in the opposite direction I see where in the  
> FreeSWITCH
> sofia xml configuration type you can set the dtmf-type as either  
> rfc2833
> or as SIP info however I don't see an option for using both nor do I  
> see
> an option for generating inband DTMF audio.
>
> Note: I was just using send_dtmf with the VoIP phone for testing  
> purposes
> ... this application doesn't actually need to send DTMF to a VoIP  
> phone.
>
> >> 2) When I dial the extension from a FXO port on a Sangoma A204D  
> it connects,
> > Is this using OpenZAP?
>
> Yes.  In my particular application the System 25 PBX connects to  
> FreeSWITCH
> using OpenZAP running on a Sangoma A204DX card.  At the end of a  
> call sent
> to voicemail I need FreeSWITCH to send some DTMF tones to the PBX in  
> order
> to turn on / off the message waiting indicator.
>
> -- John
> -------------------------------------------------------------------------
> |   Feith Systems  |   Voice: 1-215-646-8000  |  Email:  
> john at feith.com  |
> |    John Wehle    |     Fax: 1-215-540-5495   
> |                         |
> -------------------------------------------------------------------------
>
>
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>
>
> -- 
> Anthony Minessale II
>
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>
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>
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