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DTMF Tones & 3cx
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myfastback.com Offline
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Post: #1
DTMF Tones & 3cx
I have been having an issue sometimes where our phone system will not send out the correct DTMF tones. For example, if I call into a company and have to dial an extension, or call into a conf call and have to hit the conf call ID, it will skip/miss digits that I enter. This seems to be random, but a few companies we work with a lot have the same issue, so it is very annoying.

I am running T48 and T38 phones on 3cx 12.5. All phone have the same issue. I have attached snap shots of the transmission from wire shark. It appears that the DTMF signal is being sent 3 times for each 1 time I hit the button. When I call my cell phone and hit a button the DTMF tone come over all garbled and stutters.

T48 Firmware
T38 Firmware

Thanks in advance.

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06-30-2015 11:19 PM
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Messages In This Thread
DTMF Tones & 3cx - myfastback.com - 06-30-2015 11:19 PM
RE: DTMF Tones & 3cx - tsukraw - 07-01-2015, 01:10 PM
RE: DTMF Tones & 3cx - Timeinspain - 11-24-2015, 12:42 AM
RE: DTMF Tones & 3cx - James_Yealink - 11-24-2015, 04:15 AM

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