An IP phone that runs the session border controller (SBC), which encrypts traffic, reconnects calls if dropped, overcomes firewall issues and routes internal calls within the network. Without an SBC ...

The codes and commands used to establish and terminate a phone call over an IP network. The protocol supports such features as conference calling, call waiting and call transfer. The primary IP ...

Affordable and offering great audio quality, Cisco's range of IP phones make fantastic all-round choices for businesses. Why you can trust TechRadar We spend hours testing every product or service we ...

Office phones have come a long way in a relatively short time. With the introduction of Internet Protocol phones, new features make those devices more akin to computers than simple phone systems.