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Tsahi Levent-Levi
Tsahi Levent-Levi is the CTO of the Technology Business Unit at RADVISION. His experience includes product management and development, project management, with a strong background in development and management of complex VoIP projects. Tsahi currently manages a wide range of VoIP and 3G client products, which enjoy significant market share in the industry.
In addition, Tsahi serves as co-chairman of the IMTC IMS Activity Group, which focuses on interoperability issues relating to IMS client applications. He also regularly participates in related 3GPP standardization conferences, where he works tirelessly to improve the standards for the industry as a whole.
When Tsahi isn’t editing his blog on how to make video-based telecom networks work, he enjoys playing with his two kids, developing new culinary innovations in his suburban Tel Aviv kitchen, or practicing Argentinean Tango with his lovely wife, a ballroom dancing instructor, while their daughter and son, look on.
ASK an EXPERT: Which Protocol Do You Prefer – SIP or H323?
By Tsahi Levent-LeviCategories:Protocol stacks | March 24, 2011
VoIP is done today by using SIP or H.323 in most cases. Which one of them is my preferred protocol and why?
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The Battle on the Desktop: It’s the Chipset, Stupid!
By Tsahi Levent-LeviCategories:Technology | March 14, 2011
The war for the desktop has been won by Microsoft – at least for now. This is why the real battle lies in the chipset and not in the operating system.
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Sign-in and Presence Based Address Books
By Tsahi Levent-LeviCategories:Technology | March 7, 2011
Out with the new in with the old: the address book is back for good while presence is taking the second row in the dialing show.
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Who is the Service Provider?
By Tsahi Levent-LeviCategories:Technology | February 24, 2011
Service providers can be found everywhere today – up to a point where there’s little distinction between vendors and service providers. Who is your service provider?
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Will VoLTE Enable Operators to Provide Video Calling Services?
By Tsahi Levent-LeviCategories:Standardization | February 21, 2011
Mobile video calling is a growing market, and the incumbents are let out of the game for now. Is VoLTE going to be the operator’s answer to mobile video telephony?
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Are Handset Vendors About to Become Service Providers?
By Tsahi Levent-LeviCategories:Clients | February 17, 2011
The mobile ecosystem has changed in recent years. As part of this change, there is a shift in the way handset vendors are differentiating themselves from the crowd – they are now turning towards the cloud.
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The Future of Operating Systems Is Clouded
By Tsahi Levent-LeviCategories:Technology | February 10, 2011
IT migration to the cloud is nothing new. It is a trend being discussed a lot lately. How does it affect operating systems? How do they become cloud services instead of pure low level system calls?
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What Android Chipset Can Support Video Calling?
By Tsahi Levent-LeviCategories:Ask an Expert,Clients | February 7, 2011
Video calling is becoming more and more important for differentiation of smartphones and tablets. How would you choose your Android chipset if you were to support video calling?
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Android – The OS Symbian Wanted to Be
By Tsahi Levent-LeviCategories:Clients,Technology | February 3, 2011
Android has evolved nicely in 2010. How exactly it came to the place it is, and why Symbian didn’t make this leap that it should have years ago.
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Smartphones: No More Features, Only Apps
By Tsahi Levent-LeviCategories:Clients | January 27, 2011
Who cares about phone features anymore? As long as you can find an application to solve your problem you’re set.
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