[asterisk-users] fall back to inband DTMF?

Bryant Zimmerman BryantZ at zktech.com
Mon Jan 30 16:21:52 CST 2012


I went through the source code and now understand better how dtmfmode=auto 
works. In testing I was able to resolve this by setting dtmfmode=auto. 
After further testing I will deploy it to production and see if it breaks 
anything but I am hoping this will be resolved for the long term.

Thanks

Bryant

----------------------------------------
 From: "Bryant Zimmerman" <BryantZ at zktech.com>
Sent: Monday, January 30, 2012 3:54 PM
To: asterisk-users at lists.digium.com
Subject: Re: [asterisk-users] fall back to inband DTMF?

I have an issue where one of the carriers that my up-line is using is not 
offering RFC-2833. I am getting the response from them that if RFC-2833 or 
SIP INFO is not offered then I should fall back to inband.

I only have RFC-2833 offered enabled on all phone sets and trunks. The Peer 
accounts are forcing RFC-2833.  So how would I accomidate this issue as I 
never want inband used if RFC-2833 is offerd. As I understand it asterisk 
only has the option of one of the DTMF methods. Any ideas would be 
apperciated. Is there a way to not offer inband and still force asterisk to 
fall back and use it the carrier end forces it?

 Thanks

Bryant  

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