[Asterisk-Users] Asterisk <-> Avaya system

[Kristian Larsson]

Just the other day I tried connecting an Avaya
IP403 Office IP PBX to my asterisk.

The IP403 is currently used for all the phones at
our office and it is connected via it's own PRI to
the PSTN.
Now I have a Asterisk machine with three PRIs used
for our SIP services. To be able to utilize our
capacity better I would like to let the Avaya
connect to the Asterisk and share the three PRIs
that it has.

So, I connected the Avaya to my Asterisk,
configured the Sangoma card to act as the CO side.
PRI came up and I'm all happy.
I try: dial 592704 at avayaIn
and voila it dials the correct extension on the
Avaya. I'm even happier! :)
Now I try to dial out, after punching the four
first digits the Avaya dials out. The asterisk in
turn dials out to the PSTN.
No matter which number I try it just dials out
after the fourth digit. If I punch something
shorter, like a three digit number it waits for a
while and then dials.

Is this some feature to let the CO know of which
area code the calls is going ahead of time?
Anyone with Avaya knowledge know how to turn this
off?
Is there some way to circumvent this using hacks
on the asterisk side?

Thanks

Regards
  Kristian