[Freeswitch-users] DTMF issues/question

[Marc Lewis]

Brian West wrote:
> On Sep 11, 2008, at 4:58 PM, Marc Lewis wrote:
>
>   
>> I've been having a problem getting DTMF passed through from registered
>> phones to my termination provider.  Sometimes it works, sometimes it
>> doesn't.  My provider is set for rfc2833.
>>
>> In looking through the mod_sofia.conf.xml file, and the sofia sources,
>> it appears that the only two options for DTMF are info and rfc2833.
>> I've tried various combinations and the only thing that ever seems to
>> even sometimes work is if pass-rfc2833 is set to true.  I've tried  
>> this
>> with Linksys SPA 942 phones, Grandstream GXP 2000 phones and Cisco  
>> 7940
>> phones.  Doesn't seem to make a difference.  I've also tried various
>> dtmf-durations and that didn't seem to have an effect either.
>>
>> However, after doing various searches it appears that not explicitly
>> setting a dtmf-type in a sofia profile, it defaults to using inband  
>> DTMF.
>>     
>
> No that isn't the case.  We don't do anything inband by default.   
> RFC2833 is our preferred method.
>
>   
Good information to know.

>> Is this correct?  If inband DTMF is the default, then I will have my
>> termination provider switch my account over to using inband instead of
>> rfc2833.
>>     
>
> Are you using the latest SVN or what code are you using?
>   

This is running on svn version 9372.

 - Marc

-- 
Marc Lewis
Avvatel Corporation

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