To the best of my knowledge, the only way for you to control the duration sent to the PSTN lines is for you to be directly connected to the lines so you can set the tone duration in zapata.conf / dahdi.conf or to use inband signalling.
One thing you might try is researching the "SipDtmfMode" command. It allows you to change the DTMF mode on an active channel. A suggestion might be to set up the dial command with the M() option that point to a Macro that changes the DTMF to INBAND once you are connected to the problem number. At least in theory, if your provider is expecting RFC2833 and they get inband, they should just ignore the inband signaling and pass it on as part of the audio stream. The only problem is that this may only work if you use uLaw or aLaw for your codec and I don't know exactly how to set the tone duration without having a zapata.conf or dahdi.conf entry. Even with one of those files, I don't know how Asterisk chooses to do the rfc2833 to inband translation or where it pulls the toneduration setting from if no PSTN interface is involved in the call. -Brent John covici wrote: > OK, thanks. If I could convince them to use info, would that be > better as far as the duration is concerned? > > > on Monday 04/13/2009 Brent Davidson([email protected]) wrote > > John covici wrote: > > > Hi. I have a SIP provider which wants RFC2833 for the dtmfmode, > > > however I would like to increase the duration of the tone, its pretty > > > short and some IVR's are unhappy or don't detect it. I did poke > > > around, but it looks like when RFC2833 is used, it actually generates > > > rtp packets of some sort, so I have no idea how to increase that > > > duration. > > > > > > Any assistance would be appreciated. > > > > > > > > > > If your provider insists on rfc2833, then their servers will be > > responsible for setting the tone duration sent to PSTN lines. > > _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
