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• SIP in Mobile Carrier Networks
By Richard "Zippy" Grigonis |
The most distinguishing feature of modern 3G mobile wireless services over the 2G and 2.5G services of the past has been the emergence of multimedia. The original Short Messaging Service (SMS) could send mere 160-byte text messages from one mobile phone to another. |
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• SIP Anywhere: A Look at Enterprise Mobility, a la SIP
By Hal Clark |
The combination of increased availability of a wide range of mobile devices incorporating SIP User Agents and a focus on SIP evolution to meet inter-networking requirements yields significant opportunities for developers of mobile enterprise applications. |
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• SIP Testing Gets Serious
By Richard "Zippy" Grigonis |
SIP testing, like VoIP testing itself, was considered something exotic. Now that SIP has pretty much supplanted H.323 as the call control signaling protocol of choice, equipment vendors are scrambling to find labs and test equipment that can do full-blown tests of IP communications devices and applications running in a SIP-enabled network environment. |
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