Patent ID: 8676183

Claim:
A method of controlling de-subscription in a local wireless telephony system, comprising: receiving, at a base station of the local wireless telephony system over a link of a local wireless telephony interface of the base station, a request to operate as a master device from a remote telephony device that is subscribed to the base station; transmitting a grant to operate as a master device to the remote telephony device from the base station over the local wireless telephony interface and recording an indication at the base station that the remote telephony device is a master device; receiving a command from the master device at the base station; determining that the command includes a de-subscription command and includes a de-subscription target device identifier that is the same as a master device identifier of the master device; resolving a conflict handling process at the base station responsive to determining the de-subscription target device identifier and the master device identifier are the same, wherein the conflict handling process prevents de-subscription of the master device until the conflict handling process is resolved; and de-subscribing the master device from the base station subsequent to resolving the conflict handling process, performed by the base station.