[asterisk-users] Asterisk RFC2833 to SIP INFO DTMF conversion erros.

[Mayur]

Hi David,

  Thank you for suggestion. It seems to work well. So asterisk does inband
dtmf to SIP INFO dtmf conversion well. I am curious to know why there is no
consistency with 2833 to INFO DTMF conversion. Is it a known issue with
asterisk?

Regards,

Mayur

 

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From: dave cantera [mailto:david.cantera at iacnet.net] 
Sent: Sunday, January 13, 2008 11:15 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion;
mninama at varaha.com
Subject: Re: [asterisk-users] Asterisk RFC2833 to SIP INFO DTMF conversion
erros.

 

mayur,
did you try inband? with sip?
daveC
;dtmfmode=inband                ; Choices are inband, rfc2833, or info
;allow=ulaw                     ; dtmfmode=inband only works with ulaw or
alaw!
;dtmfmode=rfc2833               ; Choices are inband, rfc2833, or info
;allow=ulaw                     ; dtmfmode=inband only works with ulaw or
alaw!

Mayur wrote: 

Hi,

   I am using asterisk 1.4.17 which is connected to a SIP trunk supporting
rfc2833 dtmf events. Asterisk stays in the media path. In sip.conf I have
set dtmfmode=rfc2833 for the outbound sip proxy (SIP Trunk account) and for
SIP clients I have set dtmfmode=info. So when I make a call to a cell number
using the sip trunk and then press digits I can see the 2833 dtmf events
coming to asterisk in the rtp captures. Asterisk seems to detect those and
give SIP INFO to the SIP client. However it fails to detect some of the
digits (which is random) hence the correct sequence of digits is not
received at the SIP client.

I have tried setting relaxdtmf=yes in sip.conf but that does not seem to
help. Can anyone help me out here?

 

Regards,

Mayur

 





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