Posts filed under 'Technology'
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
[The IP based services such as VoIP (with or without IMS) run over open IP networks. As such, they are susceptible to security threats similar to those in the Internet. As VoIP communications becomes widely used, the security level on it becomes essential. In this guest post, Rasa Siegberg a Senior Systems Engineer from SafeNet provides his insights to VoIP and security.] The Great IP Migration The venerable voice communications industry is undergoing one of the most significant evolutionary steps
(read more...)
By Tsahi Levent-Levi | May 8th, 2008 | Filed under Technology
A lot of reviews have been done on Office 2007 - this is not going to be one of them. I just had the questionable opportunity of working with Microsoft Office 2007. It can be a very frustrating experience to anyone used to previous Office versions. Office 2007 can serve as a great lesson on how to plan new versions - especially when the customers are engineers. Our company has just migrated to Office 2007 this week. It has
(read more...)
By Tsahi Levent-Levi | May 5th, 2008 | Filed under Technology
[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
[Steve Rust, GIPS VP of Business Development was kind enough to provide his views on call quality and what that means on the audio side for this blog and its readers.] If you live in the United States you may have seen a television advert for Verizon where a guy wanders around the country to gauge how good his cell phone service is in different places. His tagline: “Can you hear me now?” is well recognized. Vonage is
(read more...)
By Tsahi Levent-Levi | April 17th, 2008 | Filed under Technology
No company today is capable of developing its products in-house without using 3rd party software. In most cases the process starts from outsourcing the operating system itself, continues with outsourcing specific protocol stacks and user interface engines, etc. These come from vendors which are sometimes called ISVs (Independent Software Vendors), middleware vendors or various other types of manufacturers.I came across Åse Stiller’s guest post on VisionMobile, where he recommends vendors build an end-to-end flowchart of how source codes of their
(read more...)
By Tsahi Levent-Levi | April 14th, 2008 | Filed under Technology
In the past month I have traveled the world: mostly Asia and Europe; meeting with over 30 companies. All engineering companies, some customers and others prospects. Different countries. Different mindsets. Different cultures. Different beliefs. Argentinean tango Photo: Alexander Zabara The intensity of it made me aware of the delicate Argentinean tango between vendors. Argentinean tango requires a lot of synchronization between the two dancers. The man leads the dance, deciding on which steps to make, building the choreography of the
(read more...)
By Tsahi Levent-Levi | April 10th, 2008 | Filed under Technology
Can SIP be used for consumer market devices or will it only exist in the enterprise domain? This seems like an easy question to answer - surely it is suitable for consumers as well. I met with a customer last month who is working on a videophone consumer product. Their company is specifically looking for a proprietary signaling protocol. The reason for this is: SIP is good only for the enterprise market I know for a fact that
(read more...)
By Tsahi Levent-Levi | April 7th, 2008 | Filed under Clients, Technology
IMS enables the speedy creation and deployment of new services (at least on paper). As such, it has been adopted as the architecture for next generation networks - this is true for mobile, fixed, wireless and cable networks. An important aspect of IMS is security, but I have a feeling that like current VoIP deployments, security is somewhat overlooked. On its lowest level, IMS security requires IPsec - this encrypts and secures the actual IP packets sent over the network.
(read more...)
By Tsahi Levent-Levi | April 3rd, 2008 | Filed under Technology
[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 Tsahi Levent-Levi | March 31st, 2008 | Filed under Technology
