I suppose most 770 users know that the IP stands for Internet Protocol and what that is, but I wonder if all of them do :-)

Does anybody know of a superb introduction to the VoIP world (other than ORA books)? I'm wondering what kind of hurdles to its use and adoption are - gateways and connectivity to other networks is one major issue - your VoIP phone is not that useful if you can't call others with similar things or the old phones. So what are the major VoIP networks etc.

I would suppose that the 770 would use a rather pure Internet kind of VoIP, just subscribe to a network that can be used with the VoIP application, and off you go, with all the great service the network can offer you... I don't know how well standardized the VoIP protocol scene is, but for example Skype to my knowledge is incompatible with other networks.

Apparently you wouldn't need a BT headset for the 770, however that can be a really nice thing (used them a little bit with traditional cell phones). Any idea whether the 770 would work with most BT headsets out there or would it only be compatible with a limited set of models?