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DTMF Tones & 3cx
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tsukraw Offline

Posts: 145
Joined: Jan 2014
Reputation: 3
Post: #2
RE: DTMF Tones & 3cx
I've worked on many DTMF issues over the couple years using these phones and 3CX. Most of the time it is actually not the phones.

What time of connection do you have to the outside world?
SIP Trunk?
Also what kind of hardware are you using to connect to the outside?

So looking at your captures it is normal to see the DTMF sent 3 times for each digit. It is how it works.

Depending on which type of connection you have to the outside world we would wnat to see a capture from that device. That way we could see what 3CX is sending since the traffic in the captures you provided is from the phone those to me look clean.

If you could please post the full wireshark file so i can have a look. If you dont feel comfortable posting PM me the log.

07-01-2015 01:10 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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