[Asterisk-Users] Re: Connecting Meridian M8x24-DS to Asterisk - NoDTMFtones

[Steven]

I agree.

I am sure it is a programming issue with DTMF on Stations vs. Trunks.


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-- 
Steven

May you have the peace and freedom that come from abandoning all hope of having a better past.
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"Rich Adamson" <radamson at routers.com> wrote in message news:Chameleon.1134737944.adar0 at vegas...
>
>> >> Sorry, this is slightly off topic, but I wonder if somebody has some
>> >> hints on getting our Meridian system to output DTMF tones to our
>> >> Asterisk box.  Simply put, when buttons as pressed, nothing happens.
>> >>
>> >> The Asterisk box has a 4 port Digium FXO card.
>> >>
>> >> This is what we've got:
>> >>
>> >> Meridian M8X24-DS
>> >> Meridian M12X0
>> >>
>> >> Thanks for any tips!
>> >>
>> >>
>> >> Phil
>>
>> Hey, thanks for the response.
>>
>> I have another system (Toshiba) which works fine with it, so I'm
>> doubting that it's a issue specifically with the Asterisk server or
>> it being able to properly decode the tones.
>>
>> > Have you put a butt set on the line and listen to see if there is DTMF
>> > and it is just not being recognized?
>>
>> I've done similar tests where instead of the asterisk server, I used
>> a phone instead.  When buttons are hit, no tones are emitted from the
>> Meridian, but a little acknoledge beep on the Meridian phone is heard
>> as buttons are pressed.  It seems to me like a programming or some
>> other issue on the Meridian.  But, I don't know where to start to
>> correct it.  The tech is completely MIA after my call to set up an
>> appointment.  I might have to call another service group.  I'm fairly
>> competent at managing and building out Toshiba DK systems (I maintain
>> two DK40's), but this Meridian was sort of inherited from another
>> source.
>
> Pure guess and I'm not a Meridian experienced person either...
>
> The problem sounds like the Meridian is configured to "not" transmit
> dtmf "after answer supervision". When the Meridian connects to the asterisk
> fxo port, the call is considered answered regardless of whether anyone on
> the asterisk box actually answered the call.
>
> I'd be looking for a config option on the Meridian associated with that.
>
> (Personal theory: The Meridian probably supports electronic phone sets
> where dtmf tones are not actually transmitted from the phone set to the
> pbx. Rather, a digital signal is sent to the pbx, and the pbx generates
> the dtmf tone "when instructed to do so". I'd have to guess that might be
> considered a feature to keep Meridian users from accidently hitting a
> button on the phone set and blasting dtmf tones to the user of the analog
> extension (eg, asterisk). So, it makes sense they would have an option to
> turn dtmf on/off on a per analog line basis. Also, the Meridian is expected
> to react to electronic phone set buttons for special features "without"
> generating dtmf tones, which further suggests there might be an option
> associated with the analog line interface of the Meridian. That "might"
> even be translated (in Meridian terms) to that analog interface being
> defined as an extension verses an ananlog trunk. That's all just a theory
> with no factual experience on my part.)
>
>
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