For all the technology behind Voice over IP (VoIP), you'd expect that it would work on every network, but this unfortunately isn't the case. Network Address Translation (NAT) is a common practice used ...

Session initiation protocol (SIP) trunking allows any organization to upgrade its offline PBX to an internet-powered business phone system. Business leaders are using this technology to harness VoIP’s ...

SIP trunking is a cost-effective option for modernizing legacy phone systems with minimal disruption. Discover the best SIP trunking providers and how to choose one in our complete buyer’s guide. I’ve ...

Since I posted on the subject of passing the CCIE Voice exam, I have had a number of requests to blog some more on some of the individual CCIE Voice exam objectives. So, in response to these requests, ...

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 ...