After I posted a list of iPad apps for videoconferencing (all of which needed to connect back to a particular type of service in order to work), @caskings suggested that I check out an app called Bria (http://www.counterpath.com/bria-ipad-edition.html) since it looked to be a native SIP client for the iPad that supported video.
$19.98 later (cost of app, plus video dialing option), I’m making SIP and H323 video calls from my iPad. The app does require that you register with a SIP registrar, you can’t make direct SIP calls to an endpoint. I suspect this is because the app comes out of the VoIP world. In my case, I registered it to a Cisco VCS Controller. Calls to and from SIP endpoints were possible from the moment I registered. However, since the Cisco VCS supports H323-SIP internetworking (translation), I was also able to get calling from my iPad (SIP) to any H323 endpoint with help from my friend Scott Glass, who is much better at Regex than I am. Here is the search rule and transform that he created to make it work right.
Note: H323 calls to an IP address are made as URIs in this case with the format of [IP address}@vtc.vid-in.com. The VCS will strip off the @vtc.vid-in.com and make an attempt to call via direct IP.
So this is very cool, by registering my iPad running with the Bria app to the VCS , I can make calls to and from SIP and H323 devices. As I mentioned, the cost of the iPad application (with Video dialing) is $19.98; Bria’s app also works on android. And all of this is happening without a LifeSize ClearSea server, or a Radvision Scopia Desktop Server, or a Cisco Movi/Jabber server, or a Vidyo server, or a Polycom CMA server, or any of the other pieces of infrastructure that the major makers of videoconferencing equipment require in order to support SIP and H323 videoconferencing on a mobile device.
This would been even more cool, if I didn’t make a living selling and installing such infrastructure…..
I wonder if there is a market for just providing gatekeeper and SIP-H323 inter-networking services for apps like this? There are a lot of SIP registrars that you can purchase or subscribe to, but I don’t know of any that will translate between SIP and H323 the way the Cisco VCS will. Let me know if you have a spare VCS and want to start a new venture!
Below are some screen shots from the iPad (Click for full size image). I was dialed into the LifeSize fish tank test site while sitting outside enjoying a fire. Notice that I could switch to the rear camera to show the fire! If you want to test, call me on my iPad at ScottCIpad@vtc.vid-in.com (not available all the time, email me at jsc@kalvideo.com if you want to schedule a test).



…. but one needs a VCS server, a $16K+ device….
HI, did you use a proxy setting on the Bria app or did you use the full srv records
No. I didn’t use a proxy, the VCS we registered with is on the public networks and has all the SIP and H323 SRV records setup .
BTW, This also works with ClearSea. You can set the ClearSea server as your sip registrar and you don’t need to purchase the ClearSea mobile license to get mobile videoconferencing. Probably works with other apps as well.