[asterisk-users] DTMF begin ignored

[Marcelo Ellmann Clemente]

I'm not Asterisk expert but I had some DTMF problems in the recent past...

This message is called on main/channel.c everytime a DTMF is received, and, afaik, this is not an error, it Asterisk ignores the first milisenconds of the DTMF to distinguish between a real DTMF and any sound in the same frequency of that DTMF that may come in the call (and is not a real DTMF).

I was having some problems with the E1 card I was using and no DTMF mas detected at all. I've fixed it (using another card :p) and I've got a full system in production (with a quite heavy load of calls and DTMF inputs) and that DTMF begin ignored is quite normal during all key presses.

Can you show a piece of code of the extension/context which is reading this DTMF? Maybe that would help!

Good luck,
--- 
Marcelo Ellmann 
Freeddom Tecnologia e Serviços S/A
+55 11 52133200 Ramal 1016




----- Original Message -----
From: "vip killa" <vipkilla at gmail.com>
To: "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users at lists.digium.com>
Sent: Tuesday, 21 June, 2011 2:07:37 PM
Subject: [asterisk-users] DTMF begin ignored


we've been getting complaints that DTMF is not working, i checked full log for a call that they claimed DTMF didnt work, I noticed this: 
DTMF begin '7' received 
DTMF begin ignored 
DTMF end '7' received 
DTMF end passthrough '7' 


why is the "DTMF begin ignored" called? 
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