[asterisk-users] DTMF not recognized on ISDN with Siemens -not IP- phone

Administrator TOOTAI admin at tootai.net
Thu Nov 29 02:43:24 CST 2007


Paul Hales a écrit :
> The current Digium BRI cards need the phones to send DTMF over as
> SIP-INFO. 
> Not sure why, but googling should help. (I think this is even covered on
> the Digium site)
>   
Hi Paul,

don't quite understand what you mean: how can a regular phone (not IP) 
send SIP Info DTMF? Do you mean we should add a parameter in 
/etc/misdn-init.conf or /etc/asterisk/misdn.conf?

Meanwhile, we only have the problem with Siemens phone, others brand are ok.

Thanks for your help.
> On Wed, 2007-11-28 at 09:47 +0100, Administrator TOOTAI wrote:
>   
>> Good day all,
>>
>> we have following setup: Debian Etch 64, Asterisk SVN-branch-1.4-r66244 
>> with mISDN 1.1.3 and 2 Digium cards B410P. Our customers calls in the 
>> office through ISDN lines and then get a possibility to join meetme 
>> conference. It works well except when customers are using SIEMENS phones 
>> (not IP): DTMF is not recognized.
>>
>> Does someone have an idea on what could be the problem with those phones?
>>
>> Thanks for any help
>>
>>     
-- 
Daniel



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