DMTF detection problems

Asterisk Asterisk Support
1

Hello I’m using asterisk to make calls automatically, then a voice it gives a few options to dial and the system save the option wich was dialed. My problem is that some days the system doesn’t detect the DMTF or detect them wrong (ex: if the user dial 5, the system detect a 7). This is the configuration in my sip.conf:

[myusr]
type=friend
username=myusr
secret=pass
fromuser=myusr
host=myserver
port=5060
fromdomain=myserver
nat=yes
canreinvite=no
allow=g729
context=internos
dtmfmode=rfc2833
rfc2833compensate=yes
relaxdtmf=yes
insecure=very
qualify=yes

Maybe somethink is wrong, please help

Thanks in advance

2

what version of asterisk?
what type of phone?
what carrier?

3

asterisk 1.4
voipcheap.com or mxvoice.com
the softphone doesn’t matter, because asterisk doesn’t detect the DMTF from the sip server

4

Hello,

In my case I had problems with Zoipper to install version 2.0 I had to change the option USE DTMF RFC-2833 for USE DTMF SIP INFO within the Advanced Options to sip.

If you are using is worth Zoipper also provide a verified it.

Regards.

5

In my case I just asterisk. My call is originated from asterisk, then go to the sip server and the PSTN, I think the problem is in the configuration of the server in sip.conf

6

Here I do not use either the rfc2833compensate = yes and not the relaxdtmf = yes.

Try to comment on rfc2833compensate = yes and relaxdtmf = yes and change the value insecure = yes.

7

are you using asterisk 1.4.24 by any chance? I have an open bug report on the bug list to fix a problem detecting DTMF tones if the upstream carrier presents the tone for > 200ms.

8

I’ll try insecure = yes

I use debian, and the package of the stable version is asterisk 1.4. I don’t use packages without my package manager (synaptic).