[OpenSIPS-Users] Generate INFO application/dtmf-relay message

Brett Nemeroff brett at nemeroff.com
Fri Nov 28 02:13:57 CET 2008

So this makes more sense to me. What will be generating the initial
request? This is all very easily done with asterisk. If you have an
existing dialog, you could probably mock up a INFO request, but I
don't think that will really give you what you want.

On Thu, Nov 27, 2008 at 6:27 PM, Giuseppe Roberti <jnod at jnod.org> wrote:
> Sorry Brett. My english is poor, but i will try again to explain better
> my needs.
> I have to send a dtmf to an analog device.
> This tell the device to start a timer.
> This behavior cant be changed, so i have to do it via software.
> This dtmf have to be send after the call is setup (after 200 Ok for
> previously INVITE), so the device can hear that.
> This dtmf can be a SIP INFO request or a RTP RFC2833 event.
> I have understand that i cant do it with sip info request because a
> proxy cant generate requests.
> The only solution that i see is to inject rtp, but i am not sure of
> that. (and i dont know how to do, so i am rtfm ;)
> If you have any comment/suggestion, please send me, thanks.
> Regards.
> Brett Nemeroff wrote:
>> Still, regardless of the specific requirements. You've mentioned that it's a
>> analog phone.. And thus you won't have a connected line to it without
>> "calling" it.
>> Maybe you could tell us more about it and we'd  be able to give you some
>> idea of how you might be able to do it?
>> -Brett
> --
> Giuseppe Roberti
> <jnod at jnod.org>

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