Session Initiation Protocol (SIP) is a must for voice over IP (VoIP) communication. But by itself, SIP is insecure and easily hacked. Here's what you need to know to protect your calls and your ...

I've had a phone line free household since I first got a cell phone. Being free from the wires works fairly well, but it has some limitations. To me the cellular phone is like a personal accessory, so ...

Even many IT professionals haven't heard of the Session Initiation Protocol (SIP), so it's almost certain your users haven't. However, unless you're using an entirely proprietary Voice-over-IP (VoIP) ...