Cisco 6901 IP phone model is used for creating inexpensive communication networks in places like elevators, hotel or restaurant corridors etc (UC Phone 6901, Standard handset).
VoIP Terminations and Hosted VoIP Switch Partition : VoIP Reselller, VoIP Callshop, VoIP Calling Cards, VoIP Callback, VoIP PC-To-Phone, VoIP Device-To-Phone, DID, E-Commerce, etc.