I am constantly asked the question by alumni, “I went to the SIP Tutorial years ago, has it really changed?” The answer can be seen in the marketplace today. Based on HTML, SIP started off as an easy ...

These sessions are hosted by two of the most prominent authorities in the SIP world: Dr. Henry Sinnreich and Dr. Alan Johnston (News - Alert). Dr. Sinnreich, considered by many to be the “Godfather of ...

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 ...

ABSTRACT: This paper aims to examine the various methods of protecting and securing a SIP architecture and also propose a new model to enhance SIP security in certain selected, specific and ...

ALTER TABLE acc ADD COLUMN src_user VARCHAR(64) NOT NULL DEFAULT ''; ALTER TABLE acc ADD COLUMN src_domain VARCHAR(128) NOT NULL DEFAULT ''; ALTER TABLE acc ADD COLUMN src_ip varchar(64) NOT NULL ...

As SIP continues to seep into the mainstream, more attention is being paid to security issues, especially in public IP networks/the Internet. At VoiceCon Orlando in March, we're bringing back Cullen ...

Barrett Lyon has created a don't miss resource that shows you how to configure P2P SIP URI (Uniform Resource Identifier) dialing on your Asterisk-based PBX. "There are thousands of people that operate ...