This is a method of providing a phone service to people over the Internet. This type of service moves the traditional phone switch off site and allows more than one company to use a particular switch.
Yealink SIP-W52P is a wireless VoIP DECT system, consisting of a base station and the handset. The system can be expanded up to five additional handsets (Yealink SIP-W52H), each of which can have its own SIP account. Like other VoIP DECT systems, Yealink W52P will work from a distance of 50 meters from the base in the closed space and up to 300 meters in open space.