[Asterisk-Users] fxo/fxs cards with 8 ports

[Time Bandit]

On 1/27/06, roswel ajf <roswel_ajf at hotmail.com> wrote:
> we have got asterisk 1.0 (over 1 yrs old) version and very old zaptel
> version. That code is working only with 8 or less ports (accumulative) on
> digium fxs/fxo cards (2 cards with 4 ports each).
A lot of improvements/bug-fixes as gone in Asterisk and Zaptel in a
year, so I would at least update to 1.0.10, the last version of the
1.0 branch.

But, if you don't have any problem as-is, why risk upgrading

> the questoin is, what if we want 12 ports?..well, really, i don't understand
> the limitations? is it simply zaptel driver code fix? or kernel fix? or
In short, a TDM400P generates 1000 Interrupt Request to your CPU each
second. Multiply that by the number of card you put in the server and
I think you can see where the problem lies...

As a side note, some people have reported running 3 or 4 cards in a
server without problems. YMMV

Personnaly, I would upgrade to a TDM2400P, this card can have up to 24
ports and will generate only 1000 Interrupt Request per second. You
can sell your old TDM400 or recycle them in another *

I just installed 2 TDM2400P with hardware echo-canceller and I'm
really satisfied with them up to now.

> technology limitation? donno any tips would help. we are though planning to
> move to latest asterisk 1.2.3 on linux 2.4.
>
> thanks, very much appreciate any comments.

You're welcome

hth