Hi, QBZappy:
I have been using the obi110 for a couple of days now. Overall, I am pretty happy to use it as a home telephone system for US (GV) and International (Betamax) calling. I don't see it has anything worse than Asterisk/ATA set-up and use for that purpose, especially for less technically oriented people. Another advantage I found is that this obi box is very power efficient. My Kill-A-Watt meter shows it only consumes about 1 Watt idle and flashing between 1 to 2 Watts during a call. Normally, A Dockstar and a Linksys ATA will consume 4-6 watts together. It is probably not much but at least is "greener"
. Today, if I just want to have a system for such purpose, I will probably simply use obi devices. When I did the work with asterisk, I don't think I have much choice then.
I probably don't know this device too well yet but if you want to have a PBX system has multiple extensions, I feel a Asterisk based system will be more powerful and flexible to configure. For example, as I learned from a friend of mine, it is pretty straightforward to build virtual distributed telephone network based on ATAs/softphones and an Asterisk PBX by using internet as the backbone. The terminals can be distributed anywhere in the world. Anybody has access to internet can make calls through GV and call each other. His network for his friends and family members is quite reliable as long as the country where the user located does not interfere sip operations. For example, this could happen in China. I don't know if obi can do the same thing. If it can, it will probably need to go through obitalk network. In such a case, an Asterisk system will probably be more powerful and cost less. Of course the operator will have more control over it as well. There might also be a security advantage but this can go either ways.
As for why I am interested in the obi device, mainly it is for curiosity. After working in Telecommunication industry for about 30 years, I decided to retire last June. Even though I still doing some consulting work, I have extra time spent on my hobbies. Computer and electronics are what I have been interested in all my life time. I would like to play with such gadgets whenever and whatever available.
I will keep you posted if I have anything new to report.
Twinclouds