Archive for March, 2008
[I went together on a business trip with Jacob Bridger, a colleague of mine. In one of our many discussions he raised his experience with the IP-PBX he has installed at home. I asked him if he can write it up for this blog and its readers.] Many of us see VoIP as a cheap alternative to the PSTN. Services like Skype, Vonage and others use VoIP to allow us to call PSTN numbers at the last mile using a
(read more...)
By guest | March 31st, 2008 | Filed under Technology
Around 5-6 years ago, we have started with our 3G-324M efforts. At that time, when we built the business case for a 3G-324M stack, we stated an opportunity window of 5 years only until this technology becomes obsolete. A lot of water have passed down the river since then, but the fat lady isn’t singing yet – and probably won’t in the near future. Some history 3G-324M is a protocol used by 3G mobile handsets for their video telephony needs.
(read more...)
By Tsahi Levent-Levi | March 27th, 2008 | Filed under Technology
When you work with standards it is hard to differentiate. Take for example the browser market. Not all browsers are created equal. Taking a look at the 4 major browsers on the market today, and trying to summarize each one in a sentence, this is what you will get: Internet Explorer – Largest “customer base”, not adhering to standards Firefox – Full of plugins, liked by developers and
(read more...)
By Tsahi Levent-Levi | March 20th, 2008 | Filed under Standardization
Testing a video telephony system has a lot of aspects. One of the most important ones is the resulting video quality of the system. Problem is, there’s no easy way of doing that. Two approaches exist today for video quality testing: Testing against a known video reference Testing the video without any reference 1. Testing against a known video reference If we receive a video stream that is known in advance, we can
(read more...)
By Tsahi Levent-Levi | March 17th, 2008 | Filed under Technology
There is a growing trend that is placing video conferencing endpoint vendors on a collision course with LCD makers: In recent years, endpoint vendors have started to provide high-end video conferencing clients built into LCD monitors to executives. As technology becomes cheaper, they will start providing these monitors to all employees – not only to executives. On the other end, the LCD vendors are facing fierce competition with ever-shrinking margins. This competition has forced these vendors to search after added
(read more...)
By Tsahi Levent-Levi | March 13th, 2008 | Filed under Clients
Developing a videophone or any other telecommunication client? You should start thinking seriously about IMS. Today, there are two main standards used for multimedia communications over IP: SIP and H.323, where SIP is the standard which is being adopted by most vendors today – especially in the consumer market. As 3GPP, 3GPP2, TISPAN, Packet Cable and WiMAX have all selected IMS for their next generation networks, it goes without saying that a lot of vendors will start working on IMS
(read more...)
By Tsahi Levent-Levi | March 6th, 2008 | Filed under Clients
We have just announced that Quanta is using our IMS Video Share Application.What is so interesting about this press release? Video Sharing Quanta Windows Mobile Video Sharing [You can learn more about Video Sharing here. Basically - it's a point-to-point service for mobile handsets.] The adoption of Video Sharing by operators is expanding. Video Sharing is an interesting service for 3G mobile handsets – my own feeling is
(read more...)
By Tsahi Levent-Levi | March 4th, 2008 | Filed under Clients
