I have a customer with a centralized call manager running 4.3.1. At one remote location, they have two buildings, two different addresses, that are fiber connected. They have two pots lines connected to the router that is installed at one of the buildings. We would like 911 calls for building one to use line 1 and 911 calls for building two to use line 2. Can I do this with H323 or does the gateway need to be MGCP? If I can do this with H323, please provide a sample. Thanks.