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 ...

Digium sent us their Asterisk open source software PBX to CT Labs. It was installed on a dual-processor Linux server. With help from the Digium representative, we were able to connect three SIP phones ...

Here’s your network’s dirty little secret: Your private branch exchange (PBX) is old and outdated, and if you want to bring it into the modern era with IP telephony and voice over IP (VoIP), you’re ...

Nearly three years since Jon “maddog” Hall predicted that “VoIP using an open source solution, such as Asterisk, will generate more business than the entire Linux marketplace today,” open source VoIP ...