Okay, next feature I would like!

The company I work for has 4 offices.

Each office has a DDI range, where the extension number is three digits
(each office has a different leading number for the extension number)
For example
Office 1 1XX
Office 2 2XX
Office 3 3XX
Office 4 4XX

I would like to dial a prefix (Probably *020, as this is what I had before),
followed by the extension number of the office, and have asterisk do the
rest to connect me Via VoIPBuster.

I would like to dial *020412 to get extension 412 in office 4
I would like to dial *020212 to get extension 212 in office 2
Etc..

I have done it with Asterisk before, but not with A@H

I have got it working with one office with the following...

Trunk Dial Rules
0044???????+XXX
(Replacing the ?'s with the first part of the number)

Outbound Routing Dial Pattern
*020|4XX

If I Dial *020473, I get extension 473 ringing in office 4, so far so good!

Now I want to add another office, but I am a bit stuck, as if I just do the
same for the next office, I think I will get a conflict in my Trunk Dial
Rules, as I will be trying to match three digits again.

Help!

:-)

Sparks...