The ultimate is not to use access codes, but to use a CDP. You need 4 digit ext. at both sites that are not in the same range. Magna has the outline.
Remote gateways are the IP address of the remote BCM50.
The routes should be the same at both ends. Pool C, grabs your VoIP trunks. Dest. codes should be the leading digits to your remote ext. #s. The dest code grabs pool C. Then you need a dest digit in VoIP trunking to go to the IP address or Remote Gateway of the remote BCM50.
What could be easier?