Auto add prefix to directory for bridge calls

[3CXNewbie]

Apologies if this is already answered.

We have 2 offices.

Office A dial 4xxx to call Office B, Office B call 5xxx to call Office A.

Both Offices can see the other offices 3CXPhone-directory.xml

We can get handsets to see both xml files but it won't auto add the 4 or 5 prefix.

Previously, I have amended the xml adding the prefix. Is there a way to auto add extensions from the other office?

Thanks.

 

[StefanW]

have to added this prefix in the bridge config? Once dialing from the 3CXPhone or WebClient starts, the prefix is auto added.