The challenges of testing Unified Communication products (and/or hosting a SuperOp event)

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 (read more...)

By Tsahi Levent-Levi  |  May 29th, 2008  |  Filed under Interoperability
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Off to our annual roadshow in Asia Pacific

Once a year, RADVISION’s TBU division holds a road-show in Asia Pacific. In these events, we travel between different countries, meeting clients and holding seminars. Our road-show for 2008 starts today. Seminar in Taipei during the 2007 road-show Now, that the IMTC SuperOp 2008 event is over, it is time to look forward on what will happen in the next two weeks. The road-show is a very exhausting event - it spans four different countries, usually in less than two weeks. In each country, besides the frantic runs from one meeting to another there is a seminar. During the seminar we present the various market needs of the industry along with our solutions - all this is “seasoned” with live demonstrations. This year’s theme is “Development for innovative multimedia application for IMS/NGN”, in which we cover market trends, relevant protocol stacks, client and server frameworks and testing tools. The seminar is relevant for companies who are developing VoIP communication products. In the next two weeks, we will be traveling around Asia, with countries such as Japan, China, Korea and Taiwan on our tour this time. If you are around, you are hereby invited. Just drop me a message.

By Tsahi Levent-Levi  |  May 19th, 2008  |  Filed under Technology
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4 biggest VoIP security threats

Security is always overlooked when it comes to VoIP. There are those who feel that security is essential and others who think security is overrated. The truth lies somewhere in the middle. If we need security, we need to decide against what.Here are 4 of the biggest threats in the world of VoIP where it comes to security - this is why we really need to take a good hard look at how we deploy our networks. 1. SPIT (Spamming) (read more...)

By Tsahi Levent-Levi  |  May 15th, 2008  |  Filed under Technology
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De-facto standardization hurts 3G ring-back service

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 (read more...)

By Tsahi Levent-Levi  |  April 24th, 2008  |  Filed under Standardization
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The effects of multi-core on SIP servers

[I’ve had a chat the other day with a colleague of mine, Danny Loeb, who is the Product Manager for our SIP Server Platform. As part of his work, he needs to deal with the multi-core trend and how that changes the architecture of his product.] Multi-core is all the rage these days. Or at least this is what Intel tell us - almost every month Intel arranges a seminar, workshop, training or some other session about multi-core here in (read more...)

By Tsahi Levent-Levi  |  April 21st, 2008  |  Filed under Technology
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