Patent ID: 6574470
Filing Date: 2003-06-03
Classification: H04W

Abstract:
A system for forwarding an incoming call, the call originating from a first communication device and being directed to a directory number of a wireless centrex system, the wireless centrex system comprising:an intelligent radio transceiver in communication with a mobile station; a local digital switch configured to route communications between the first communication device and the mobile station, in communication with the intelligent radio transceiver via a wireline interface without being connected to any public cellular system, configured to receive an incoming call and transmit a routing request for the call, and configured to alert a mobile station having a forward directory number associated with the directory number of the call, said logical digital switch having a timer for counting a predetermined amount of time in response to receipt of a programmable ring value while alerting the mobile station of the call, and configured to transmit a notification when the predetermined amount of time has been exceeded without the call being answered, and configured to receive a call forwarding number associated with a second communication device and forward the call to the second communication device; a network server platform configured to receive the routing request, determine where the mobile station is registered and how to route the call to the mobile station, and instruct said local digital switch to alert the mobile station having a forward directory number associated with the directory number of the call, and configured to determine whether a programmable ring call forwarding feature is active and if so, configured to provide said local digital switch with the programmable ring value for setting the predetermined amount of time, the value representing a time period for which the call should ring before being forwarded, and configured to receive the notification from said local digital switch when the timer counts the predetermined amount of time and configured to trait the call forwarding number associated with the second communication device to said local digital switch responsive to the notification.