IP Fragmentation of SIP Messages is an enduring source of trouble. Fragmentation of SIP traffic is a problem on the rise. It appears when everything has been working fine, and seemingly without cause, some SIP messages are lost in the network. The result is a frustrating scenario where some SIP messages are delivered fine, but […]
When we teach classes on VoIP networks, we discuss the variety of SIP standards that can be used by working systems. For example, identifying the calling party varies between platforms: One system uses P-Asserted-Identity to indicate the caller, and another uses From. Then there’s the codec used for audio: One system uses G.722 and another uses […]
Robocalling, enabled by VoIP, causes real social harm Filtering based on Caller ID brings some temporary relief The telecom industry has real work ahead to protect Caller ID with STIR VoIP Drove down the cost of making phone calls. We love that about VoIP: free long distance! In the telecom industry now, the idea that […]
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Quick-and-easy Command-Line Decoder for BroadWorks CDRs.