[asterisk-users] Sangoma PRI

[Matt]

Hi,
I have a client who has a system with a Sangoma 1 port PRI card with
echo canceling in it.    For some reason, when the system comes up the
PRI will stay up for about 4-5 hours, then drop.   "zap show status"
shows everything as ok, but we can't make or receive any calls until
the system is rebooted.   Just restarting asterisk does not fix the
problem.

I am going to call Verizon, however wanted to consult the list to see
if anyone here had any ideas.  At this point, I am putting my finger
on a Verizon issue, as in our lab the system did not have any issues
keeping the PRI active and taking calls.

Any thoughts?