Hi,
I need to be able to show the calling number of a Telephone connected to one system (I'll call this PBX-DE2) which dials out over ISDN30 connected to another system (PBX-DE1.) They are linked together using Direct IP.
On PBX-DE1 I have created the substitutions and applied this. This works on a call made from a handset on PBX-DE1, but not from a handset on PBX-DE2. I did think I might need to add the ID of the system to the DID number but this is too long. Is this even possible to do?
Thanks
Stephen