GL Communications Inc., a global provider of voice testing solutions, announces significant enhancements to its SIP testing platform, enabling high-load, secure and automated generation of voice, ...

We recently spoke with Marc Robins, president and managing director of the SIP Forum, to catch up on the latest news about Session Initiation Protocol. In its latest efforts, the SIP Forum has worked ...

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 ...

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, ...