Thanks azrobert. Two questions:
1. If you don't register your OBi device with the OBiTalk portal, does it still register itself with the OBiTalk servers when it comes up to the extent necessary to permit you to receive and make calls (presuming the OBiTalk Service default of "Enabled" is not changed locally)?
2. So the call setup packets, of course, have to flow through the intermediary OBiTalk servers. But, after the call is set up, do the voice packets flow through the OBiTalk server, or do they go directly from the calling party's IP address to the called party's IP address (and vice versa)?