You deserve to know who’s calling. Learn how to find the owner of a VoIP number on your own, and involve law enforcement if that’s what it takes. Key takeaways ...

A voice over IP (VoIP) service can improve your call quality and save you money compared with a traditional landline. These ...

IBM on Wednesday said it is partnering with Cisco Systems and Avaya to sell and manage telephone systems that use the Internet instead of traditional phone lines. The partnership offers customers a ...

The SIP protocol is commonly used for IP telephone communications. Unfortunately it’s notorious for having issues with NAT traversal. Even some major vendors can’t seem to get it right. [Stephen] had ...