[Asterisk-Users] Door buzzer.

[Rennes Neps]

I have the same problem setup with one of our customers, but I have a 
different problem. I have Grandstream ATA 486 connected to clients 
doorphone system and clients *. I have two problems: first, when someone 
is calling from the doorphone, ATA doesn't recognize the called number 
correctly. 2 or tries out of 10, ATA get's the number wrong. I have 
tried all kinds of DTMF settings, relax dtmf and so on, nothing helps. 
It seems to me, the doorphone's generated DTMF tones are too short. Ok, 
that I can resolve with some simple hack, but bigger problem is, when 
secretary presses 8 on the phone, to open the door, doorphone doesn't 
recognize the tone. Customer has SNOM 190's and BT-100 on their network. 
Now however long I press the button on the phone, * still sends a very 
short tone on the line. And that doesn't seem to enough for the 
doorphone to recognize. Is there any way to make * generate longer DTMF 
tones?

Regards
Rennes Neps

Cian O'Sullivan wrote:

> Hello,
>
>  
>
> I have a customer who has their front door integrated to their current 
> phone system.  If someone presses the buzzer, the secretaries phone 
> will ring, and she can talk to the person at the door.  By pressing ** 
> she can release the door.
>
>  
>
> Anyone have any sort of integration like this.  Are there IP devices 
> anyone is using?
>
>  
>
> They have a pizza box server as their asterisk server with a T1 card. 
> No more slots, so if I want to use the existing infrastructure I will 
> need to build a second server with an FXO port.  Kinda stupid having a 
> second server just to open the door.
>
>  
>
> Any suggestions?
>
>  
>
> Cian
>
>  
>
>  
>
>  
>
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