TN793 PROBLEM!!!

[TELECOMSONATRACH]

Hi;
we have an Avaya S8720 server, we manage this system for more than eight years.
the number of users available equipped analog stations is 500phones; at the start everything works but since two years some stations begins to stop working increasingly, we are in a critical situation and it remains annoying work just 200phone!!! used cards are TN793.. it is useless to buy other analog card and we don't know what exactly is the problem, possible that these cards will be damaged in their turn?
please we need help

 

[janni78]

This forum is for IP Office, try

http://www.tek-tips.com/threadminder.cfm?pid=690

But it sounds like you haven't even tried to change one card, I would try that if the analog phone doesn't even work when connected directly to the panel from the card. Might try a different panel if that's the issue.

"Trying is the first step to failure..." - Homer