[Asterisk-Users] Stability of Asterisk with 2 x TDM400P cards (6 analogue lines)

[Rich Adamson]

Jared Davison wrote:
> I would like to hear from anyone good or bad as what their experience has
> been in recent times with STABILITY of current builds of Asterisk and
> drivers for TDM400P.
> 
> The sort of configuration is: 6 incoming POTS lines. ie. 2 TDM400P cards.
> 
> I am not concerned with: price points, or the advantages or disadvantages of
> using POTS vs ISDN technology, but simply RELIABILITY & stability of the
> Asterisk system & associated interface hardware and drivers.
> 
> Do people need to reboot their systems regularly?

There are a number of folks that have reported using two TDM400's 
reliably, and a few that have indicated three working.

One of the primary issues with using either two or three cards is 
finding a motherboard that allows the two cards to use different 
interrupts (to avoid shared interrupt issues).  A second motherboard 
issue tends to be oriented around motherboards (mostly older ones now) 
that have a poor pci implementation (eg, north/south bridge chips on the 
motherboard).

Alternatives to two TDM400's include using the TDM2400 or Sangoma A200D 
where only a single pci slot is used for 1 to 24 fxo's and/or fxs's.

As of this moment, I have a single (low volume) system with both a 
TDM04b and A200D installed which will be used to compare the cards and 
provide a eval document addressing the advantages and disadvantages of 
each in certain production environments. The TDM2400 will be included in 
the mix when all the necessary cables and components are here.