Servers running the open source Asterisk communication software for Digium VoiP services are under attack by hackers who are managing to commandeer the machines to install web shell interfaces that ...

The author is assistant chief engineer of Radio One Dallas. For years, Radio One Dallas had a Nortel phone system that seemingly required a service call for anything beyond switching out a handset ...

Originally the problem was that trying to enter access codes when joining into conference calls wouldn't work reliably. It would double a digit somewhere, and then it would cause great consternation ...