Hi, I am generating the tones from Asterisk, using senddtmf and option D in the Dial command.
Is there no way to change it? Can I somehow modify it in tonezone.c and recompile Asterisk? -- Zeeshan A Zakaria On Sat, Nov 21, 2009 at 8:56 AM, Tilghman Lesher <[email protected]> wrote: > On Friday 20 November 2009 17:03:20 Zeeshan Zakaria wrote: > > Hi, > > > > I am having this issue that with one of the Asterisk servers, on zaptel > > hardware, that DTMF tones are 10-30 Hz too high than the upper limit for > > any DTMF digit frequency. This is causing problem with the equipment on > the > > other end which is trying to recognize the DTMF digits. I tried different > > cards from the same vendor but it didn't help. For example for digit 1 > > where it should generate 697 Hz, it would generate 712 Hz, and where it > > should generate 1209 Hz, it would generate 1230 Hz. > > > > Talking to the hardware support, they said it is not dependent on the > > hardware. I googled and found very little information, but apparently it > > was an issue with ztcfg and zaptel, but it was fixed more than a year > ago. > > > > I found that in dsp.c file we could change the frequencies, but that is > > only for the incoming DTMF. > > > > Is there a way to change DTMF frequencies for the outgoing DTMF? If I > could > > drop all the frequencies by 15 Hz, that might solve the problem which I > am > > having. > > It's hardcoded in tonezone.c. Another possibility is that your phones are > generating tones that are out of whack with the standard, and Asterisk > isn't > detecting them as tones because they're so out of whack and they're simply > getting passed, unchanged, onto the remote side, where they are similarly > not > being detected. > > -- > Tilghman Lesher > Digium, Inc. | Senior Software Developer > twitter: Corydon76 | IRC: Corydon76-dig (Freenode) > Check us out at: www.digium.com & www.asterisk.org > > _______________________________________________ > -- 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 >
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