Today, there are two standardized real-time video communication technologies that are available on commercial mobile handsets: video telephony and video sharing. From questions I receive once in a while from people, it seems like the differences between the two are not that obvious. What is Mobile Video Telephony? Mobile Video Telephony is a circuit switched based technology that uses 3G-324M for bidirectional video calls. It is available on a large (and growing) number of handsets. The way you use it
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By Tsahi Levent-Levi | October 13th, 2008 | Filed under Clients, Technology
You can’t discuss communication protocols nowadays without bringing up IMS. Although IMS started as a mobile-centric protocol, it is now all encompassing and also includes IPTV. Since both Packet Cable and TISPAN make use of IMS, IPTV also has an IMS architecture connected to it. IMS for IPTV starts simply from the fact that operators today are mostly triple-play or quad-play players: their services include telephony, television, internet browsing and mobile phones. Quad-play doesn’t mean convergence in any way -
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By Tsahi Levent-Levi | September 18th, 2008 | Filed under IPTV
The lines between communication services are getting blurrier every day thanks to the internet. Some of us do phone calls (or video calls) over Skype or through other VoIP providers and those of us who don’t still dial transatlantic calls might not know it but we actually go over IP some of the way in-between these continents. The same is happening for television, which eventually transitions to IP service. As we move to a world where service providers offer triple-play
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By Tsahi Levent-Levi | September 8th, 2008 | Filed under Technology
[Ask an Expert is a new service in RADVISION’s Blogs. In this service, you ask questions, and we do our best to answer them here on one of our blogs. If you have any question to ask, feel free to contact one of the bloggers through our About pages] Last week a Product Manager from a large company who provides services to service providers approached me with the following: I am very interested in Mobile Video-telephony services. Specifically the protocol
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By Tsahi Levent-Levi | September 2nd, 2008 | Filed under Ask an Expert
iPhone 3G is by far the most hyped phone (or even product) out there today. Everything about it is great - even though you can’t get coverage, have lousy battery life, buggy OS updates and general instability when you call, the party in the Apple AppStore is going on without a stop, with over 30 million dollars of sales in the first month alone. iPhone iPhone really changed the mobile handsets market. Other than making the concept of downloading applications
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By Tsahi Levent-Levi | August 28th, 2008 | Filed under Clients
Last month I asked the question do communication protocols need to be Swiss Army Knives or penknives. I also asked the same question in LinkedIn Answers. The (almost) unanimous answer I got was penknives. The best part of it was actually getting two great acronyms to use for that do-it-all protocol: Steve Michelson suggested GPPTDE: General Purpose Protocol That Does Everything Cedric Mauvielle suggested SAKF: Swiss Army Knife Protocol Cedric believes a SAKF (or a GPPTDE)
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By Tsahi Levent-Levi | August 4th, 2008 | Filed under Protocol stacks
There is no such thing as Unified Communications or Social Media. For that matter, Web 2.0 and Phone 2.0 are also non-existent. And there’s no Presence in TelePresence either. For the last decade, I’ve been a player in these worlds, working on either development or marketing of related building blocks for this industry. During that time, only three things have changed: There’s a lot more bandwidth waiting to be used There’s a lot more processing power There’s more acceptance
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By Tsahi Levent-Levi | July 31st, 2008 | Filed under Technology
It seems that in the last several years, the only business case presented by companies is advertising. Search? Advertising. Blogs? Advertising. Calls? Advertising. Entertainment? Advertising. Although advertising is a good monetization technique for some, it is not a ‘one size fits all’ solution. Let me first split the markets into two specific types: hunters and gatherers. I am not talking about prehistoric human societies, but rather about the concept of what we do
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By Tsahi Levent-Levi | June 23rd, 2008 | Filed under Technology
