The iptel.org 180+ page SIP tutorial is outstanding. Another overview that is a bit more market-oriented and nearly as long. White paper on the SIP value proposition over telephony, SIP and the new ...

Voice-over-IP (VoIP) networking comprises many components and network managers might find themselves treading on new and fragile ground as they investigate VoIP projects. This white paper provides an ...

GAITHERSBURG, Md., March 31, 2026 (GLOBE NEWSWIRE)-- GL Communications Inc., a global provider of voice testing solutions, announces significant enhancements to its SIP testing platform, enabling high ...

On either side of that somewhat soft SIP trunk demarc, security continues to be important, and it's still a matter of contention on who's willing to pay for what services. In case you don't know him, ...

With the proper configuration, policies, and services, we can assure ourselves that our conversation has been secured. For the most part, I love my job. I love sifting through Wireshark traces trying ...

A network that uses the IP protocol, which is part of the TCP/IP protocol suite. IP has become the global standard for networking, which includes the entire Internet, many of the data and voice ...

George Ou explains IP subnetting using his own graphical approach. It’s a great primer for students and a nice refresher for others. IP subnetting is a fundamental subject that’s critical for any IP ...