VoIP (Voice over Internet Protocol) is a system for transmitting voice calls over the internet, rather than a phone line.

Thousands of AT&T customers are unsuccessfully searching for a signal across the country amid a nationwide telecommunication outage early Thursday morning. AT&T acknowledged the issue in a statement ...

Phone and Android users can reduce Wi-Fi calling battery drainage through settings adjustments, background app limits and ...

Microsoft's Skype has finally shut down, concluding its 22-year tenure as the once-dominant internet calling and messaging service. Microsoft acquired Skype in 2011 for $8.5 billion in what was then ...

If you want to fix the SOS displaying on your phone, here's what to do. But the issue may lie with your carrier.