Thanks for your comments.
I would like to use Asterisk as an addition to a customers existing PBX as a VOIP gateway to say other sites, but keeping the solution generic as possible without too many alterations on the customers existing environment.
Ideally I would like to unplug one of the customers existing digital phones and plug it into an Asterix server, then using that extension to route the VOIP calls. Am I talking rubbish here, is this sort of approach possible ?
This is a Perfect application for interconnecting 2 PBX’s that are not VOIP Compliant.
Asterisk Box A and B have a PRI Cards
Pri on Each Asterisk is connected to the PBX at the location it resides.
Program the Pri’s to work with the PBX as DID OR Tie Line Arrangement Trunks.
Next Program IAX Trunks Between the Asterisk Boxes and allow as many channels as your bandwidth between the sites allow.
Once a connection between each asterisk is done and the pri’s are up , program routing information to route calls from the pri inbound > out the iax > to the inbound iax > to the outbound pri > to the remote pbx and vice versa.
Kinda quick and dirty explanation but you get my drift.
I did this with 2 Asteirsk Boxes and 2 Nortel PBX’s