We have CUCM 7.1.3, CUPS 7.0, CUPC client and 7 PRI lines from different ISPs.
In india we have TRAI regulation that WAN & PSTN call can not be merged.
Currently when users will be in the office, they can dial CUG as well as PSTN calls which is working perfectly fine.
Now when users will connect through VPN; we want that users can dial CUG numbers but should not be allowed to dial any PSTN numbers as per TRAI rule.
So need your help to configure the same.