[Asterisk-Users] Multiple TDM400P's in a single machine

[Philip Edelbrock]

Marc Archer wrote:

> Can someone give me a definite answer as to wether or not you can 
> reliably run multiple TDM400P’s in the same machine?
> 
> I need 4 x FXO and 4 x FXS to connect to both the PSTN and existing key 
> system, but I have seen several threads suggesting that this is not a 
> supported configuration
> 
>  

Potentially easier and cheaper is to just have the FXO's and connect it 
as analog extensions.  That's what we did here.  It serves as a 
replacement voicemail system, and IVR while still being able to answer 
and route calls, provide gateway to voip extensions, etc.

Less waste, too, if/when you completely switch to voip.  FXO ports are 
likely to be more usable than FXS if that becomes the case, I would imagine.

That said, I think some folks have run multiple TDM400's by making sure 
they have unique IRQ's.  I'll let somebody else speak to the details of 
that.


Phil