Call transfer using a direct short-range information exchange between the transferor and the transfer target

摘要

The application relates to the transfer of a telephone call session from a wireless telephone (11) to a desk telephone (17). The desk telephone (17) or any other telephone to which the call is transferred is referred to as "target local telephony device". Systems and devices for transferring calls from wireless to other telephony devices exist but are, according to the application, less flexible, secure, dependable, and user friendly than they might be. These problems are solved by exchanging "wireless signals" between the wireless telephone (11) and any "target local telephony device" (17). Such "wireless signals" may for example comprise indentifying information for each target local telephony device (17), such as, for example, extension numbers, telephone name(s) or other identifier(s), or office, cubicle, or other physical location. The wireless signals may also include directional information, such as global or relative coordinates, ranges, or compass directions. Such wireless signals may be pushed from the one or more target local telephony devices to the wireless telephone when it is within communications range of target local telephony device. In other embodiments, such wireless signals may be pulled from target local telephony devices (17) by wireless telelphone (11). For example, each target local telephony device (17) may include a radio-frequency identification RFID transponder. The wireless telephone (11) uses the wireless signals to instruct the call server (125) to transfer the telephone call session to one of a selected local telephony devices and terminating the session with the wireless telephone.