In order to configure the Comdasys Branch or Branch as SIP Proxy the PBX (Private Branch eXchange) address, domains and gateways must be specified.
The Comdasys Branch or Branch SIP Proxy should configured with:
PBX Address = IP address of SBC (Session Border Controller) access sideParent topic: SBC (Session Border Controller)
Domains = IP address of SBC access side
Gateways = IP address of branch gateway