[Asterisk-Users] PRI, multi D channels and conventional PBXs

[Lee Redmayne]

Hi all

OK this may sound like a good one but maybe someone can tell me.

Simple context is - I want to unplug my existing conventional PBX from the
Telco and place * with it's TE410P in between.

Now the difficult part, the existing connection is E1 PRI (Q.931) with 6
B-channels.  I need to be able to trigger a D-channel to the old PBX and a
D-Channel to the Telco (Not BT!).

Next I can put the PBX onto a span 2, it triggers the D-channel and all
seems hunky dory - until you try to acquire a line from * - this gives me:

 -- Extension '' in context 'blah' from '' does not exist.  Rejecting call
on channel 6, span 2

Any suggestions most welcome!
Lee