I've read the wiki and I've searched the mailing list but I can't find out how to do what I want to do and that is:

Bridge an incoming call to a different profile AND specify the gateway? I can easily see how to do one or the other but not both. Why would I want to do this? The incoming call is on the internal profile. The internal profile uses UDP and ACLs as it is all connected to a single switch. But the call from internal needs to be bridged to an external gateway using TLS - on a different network interface. So it should be on a different profile. However, I don't want to specify the IP address in the dialplan because the destination is another gateway, so it should be a gateway.