I'm trying to setup a CME system that will span 2 very small offices that will be connected via site-to-site VPN. Each location will have PSTN connectivity via FXO. 3725 router with Catalyst 3524-PWR on each site. 7970G phones. The goal is to have calls come in from the PSTN at either location and be answered by an employee at either location, i.e;
Location A: Call comes in from PSTN to 555-555-1111 which is a DID assigned by PSTN to location A, it rings DNs 1001 and 1002 (which are local to Loc-A) and also rings DNs 1005 and 1006 (local to Loc-B)
Also if a call comes in from PSTN to 555-555-2222 which is a DID assigned by PSTN to location B, it rings DNs 1005 and 1006 and then will ring 1001 and 1002.
Basically, I know this is confusing the way I have tried to explain it, but am looking to integrate 2 offices with different DIDs assigned by PSTN to each office using CME. Enable call transfer between each office, etc. If anyone has any suggestions I'd welcome them. Also if there are any Cisco documents that work with this type of scenario using VPN to link locations I'd also be interested in reading them. From what I understand, CME would be a good match for this situation. Thanks in advance.