Michael Mace at Mobile Opportunity complains about market share statistics - he is so right, and it’s not only the smartphone market, it is virtually any market and any product. You can read about this also in this week’s Carnival of the Mobilists. The removal of VoIP from Nokia’s handsets is pushing customers to iPhone and Android - not sure I agree on this one. Luca Filigheddu is on the spot here, as the N-series from Nokia is for the consumer market, most consumers don’t care if they call using VoIP, 3G, GSM or whatever. Speaking of Nokia, Joel Spolsky chose Nokia E71 over the iPhone 3G - the iPhone is not a one size fits all solution. Not VoIP related, but surely IP related - Cringely takes a jab at numbers, building predictions on the future from Cisco Certified Internetwork Experts statistics. Nice to see my country (Israel) doing well in his results. Another great one by the Cranky Product Manager - if you had to deal with engineers in the past (or if you are one), this one is definitely something you should read.
By Tsahi Levent-Levi | August 27th, 2008 | Filed under Around the net
3G Video Telephony is powered by a protocol called 3G-324M. 3G-324M is circuit-switched based, so everything you send is sent as a single bitstream at a fixed bitrate of 64 kilobits per second. On that single connection, you can send voice, video, data and signaling. Since there’s not a lot of room 3G-324M uses a very efficient multiplexer protocol called H.223. The only problem is that implementing it properly isn’t that easy. For that purpose, RADVISION has developed an efficient
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By Tsahi Levent-Levi | August 21st, 2008 | Filed under Technology
Going green is all the rage these days. Slowing economy, raising gas prices - just what you need to fuel up video conferencing. When all around us, people are trying to reduce energy use, is there any room for solutions that are power intensive? VoIP seems like a great solution when used for video conferencing, but when used on a mobile handset it might be a different story. I ran by a post in Martin Sauter’s blog, WirelessMoves, where
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By Tsahi Levent-Levi | August 18th, 2008 | Filed under Technology
Interesting times in the mobile handsets arena. VisionMobile maps the new centers of gravity in this industry. I believe competition will lag behind Apple’s iPhone in their next release as well as copycatting its ideas and designs. Talking about the iPhone - I am thinking of starting a petition to ban iPhone from Google Alerts for 3G video. For the past two weeks I am getting nothing from that service besides iPhone jailbreaks and teardowns. Growing bandwidth and increasing CPU power will change television as we know it. It will also speed up the use of video telephony adoption and quality and this fits well with the trend of multi-core diversification I have written about. You can add to this TiVo’s two new deals with YouTube and Amazon - it’s only the beginning. HD is seen by some as the true promise of VoIP - this is certainly different than the Unified Communications pitch. What happens when you don’t have enough bandwidth though?
By Tsahi Levent-Levi | July 28th, 2008 | Filed under Around the net
iPhone 3G is not out. As I have predicted, it doesn’t include any video conferencing technology. Instead of starting to analyze and explain what this new version is going to do to the market, I’d like to step back and look at what the first iPhone already did. Simply put, the iPhone has placed the ODMs and the handset vendors in a UI-frenzy.The iPhone came out as an innovative handset. Apple boldly decided not to try and compete in the
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By Tsahi Levent-Levi | June 12th, 2008 | Filed under Clients
3G-324M can be found in over 450 million handsets worldwide. A software based protocol stack that is needed in every 3G handset, 3G-324M, however, has absolutely zero open source implementation? Because it is not IP based. Commercial value The open source model succeeds; not because people want to contribute and invest their time in free software; it is because corporations are finding a way to support such investments by getting their revenues indirectly - by selling maintenance, services, training, advertising
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By Tsahi Levent-Levi | June 9th, 2008 | Filed under Standardization
Two weeks ago, RADVISION hosted the IMTC SuperOp! 2008 event. The most obvious conclusion from this event is that multimedia conferencing (or should I say Unified Communications) is getting better – at least in terms of interoperability. Without exceptions, all companies successfully connected video sessions with one another. The IMTC SuperOp! event is the main interoperability event of the IMTC. In this event multiple activity groups, each dealing with a different multimedia communications technology, gather in a single room to
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By Tsahi Levent-Levi | May 29th, 2008 | Filed under Interoperability
It has been rumored that the new 3G iPhone features a front facing camera. Assuming this is true, the camera will be used for video calling. An important question is what protocol will be used for the video calls? I have written a guest post at Smith on VoIP blog regarding the difference between 3G-324M and SIP regarding mobile video telephony. In that post I explained that currently mobile video telephony (on handsets) is made possible using 3G-324M. SIP, on
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By Tsahi Levent-Levi | May 26th, 2008 | Filed under Clients, Standardization
There are times when de-facto standards hinder the adoption and use of services. This is the case with 3G-324M and video ring-back servers. What’s 3G-324M? 3G video telephony uses a protocol called 3G-324M. This protocol in turn, uses another protocol called H.245 for call control - with H.245, handsets signal what features and capabilities they have and negotiate the media channels that will be used in the call. H.245 includes procedures and message that allow for the opening and closing
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By Tsahi Levent-Levi | April 24th, 2008 | Filed under Standardization
