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" <brya...@zktech.com> Sent: Monday, January 30, 2012 3:54 PM To: asterisk-users@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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