[Asterisk-Users] Zaptel card AND Ztdummy together?

[qrss]

What kind of card are they using?  Is there only 1 telco circuit?
If so, then I'm thinking their card should have detected the loss of
service and switched to it's internal clock. Do they have a secondary
clock source available across another circuit? Perhaps a tie line to a pbx
that can be configured as a secondary?

-----Original Message-----
From: Rod Bacon
Sent: Thu, June 23, 2005 12:03 am

I had a weird (unforeseen) situation today. We have a remote office with
> an * server and ISDN 10 service. We connect to each other over an IAX
> trunk
with G729.

Today, some of Sydney experienced a power surge which knocked out their
> ISDN services. Without a clock source on their PRI card, my IAX calls to
> them
resulted in one-way audio (they could hear me, but I not them).

Is it possible to load *both* the relevant card driver *and* ztdummy to
> guard against this occurrance?
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