Patent ID: 7590422

Claim:
A method for handing off a call between a mobile station and a first anchor base station to a second target base station, the first anchor base station associated with a local cordless service and the second target base station associated with a macro-cellular service, wherein the second target base station connecting with the mobile station includes the second target base station and the first anchor base station and the second target base station are connecting to the same local digital switch (LDS), said method comprising: the first anchor base station sending a call handoff request to a network server platform (NSP); the NSP sending a handoff preparation message to the second target base station; the second target base reserving channel and frequency resources for a connection with the mobile station, sending an LDS feature activation message for directed call pickup using barge-in to the LDS, therefore setting up a temporary conference bridge between the first anchor base station and the second target base station at the LDS for lossless handoff operation, sending a handoff directive to the first anchor base station in order to command the mobile station to connect with the second base station, and connecting with the mobile station; and the first anchor base station releasing a connection with the mobile station.