I set up a monitoring system that calls my techs when a problem occurs on one of our networks, everything works fine unless asterisk calls a cell phone in which case the tech can not respond using dtmf. It works fine if the tech call in but not if asterisk call a tech's cell phone. Anyone one have any suggestions? Thanks John Fullington
Normally a problem with either reinvite or your dtmf type (info, inband, etc). Change these until it works. On Tue, 8 Mar 2005 14:16:18 -0500, John Fullington <fje@fullnet.com> wrote:> I set up a monitoring system that calls my techs when a problem occurs on > one of our networks, everything works fine unless asterisk calls a cell > phone in which case the tech can not respond using dtmf. It works fine if > the tech call in but not if asterisk call a tech's cell phone. Anyone one > have any suggestions? > > Thanks > John Fullington > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >-- James Taylor MetroTel 3505 Summerihll Road Suite 11 Texarkana, Texas 75503 903-793-1956
On Tue, 2005-03-08 at 14:16 -0500, John Fullington wrote:> I set up a monitoring system that calls my techs when a problem occurs on > one of our networks, everything works fine unless asterisk calls a cell > phone in which case the tech can not respond using dtmf. It works fine if > the tech call in but not if asterisk call a tech's cell phone. Anyone one > have any suggestions?The application sounds interesting. Any chance you can email more about what you are actually doing? (code?) It sounds like your problem has nothing to do with mismatching Codec's or how the DTMF is being sent... etc... I have an Asterisk installation with BRI and with a premicell attached to an analogue interface (Premicell=fixed cell phone with analogue 2-wire interface that gives dial tone - like a trunk line) Perhaps I can then confirm your problem - or help with a solution? -- . . ___. .__ Posix Systems - Sth Africa. e.164 VOIP ready /| /| / /__ mje@posix.co.za - Mark J Elkins, Cisco CCIE / |/ |ARK \_/ /__ LKINS Tel: +27 12 807 0590 Cell: +27 82 601 0496
Hi John, You didn't say what kind of cellular system. If its an AMPS system (I don't think any other analogue cellular stiff exists) DTMF is quite troublesome. If it is a digital network the DTMF actually comes from the basestation, rather than the phone. Its is normally very high quality. However, its timing is nothing like the timing of the button pushes on the handset. The basestation stretches the digits to rather long ones. Possibly as much as a second each. Regards, Steve John Fullington wrote:>I set up a monitoring system that calls my techs when a problem occurs on >one of our networks, everything works fine unless asterisk calls a cell >phone in which case the tech can not respond using dtmf. It works fine if >the tech call in but not if asterisk call a tech's cell phone. Anyone one >have any suggestions? > >Thanks >John Fullington > >