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.
Cisco 6911 is inexpensive model of the IP phone to be placed in the libraries, lecture classes and remote workers (Cisco UC Phone 6911, Standard handset). The specialty of this model is programmable functional key ensuring quick access to modern day communication services. Three-color line LED provides visual monitoring.