A SIP trunk is the digital version of an analog phone line. Learn how you can upgrade to a unified digital phone system for ...

Before kissing TDM voice goodbye, make sure sellers keep their pricing and performance promises, and that you don't put your network or its economics at risk. Here's how. SIP trunking (VoIP based on ...

So our local phone company has recently jacked up our landline price to a whopping $52/month. For $52 we get a local number, and local calling, but have to pay for US long distance, etc.. Pretty ...