Method of registering/-reassigning a call in a dual mode communi

Details Method of registering/-reassigning a call in a dual mode communi Method of registering/-reassigning a call in a dual mode communi

1995-03-16

1996-11-12

Urban, Edward F.

Telecommunications

Transmitter and receiver at separate stations

455 341, 455 542, 379 59, H04Q 722

Patent

active

055749739

ABSTRACT:
Registration operates by sensing (106) the availability of a first communication system. A quality factor of a channel of the system is measured (111). A channel of the first system is selected if the quality factor of the channel exceeds a threshold (113). If selected, the subscriber attempts to register the call (114). If the registration fails, the availability of a second communication system is sensed (107). A quality factor of a channel of the second system is measured (111) and selected (113), if the quality factor exceeds a threshold. The subscriber will then attempt to register (114) with the second system. Reassignment operates by determining if the first system has reached a capacity limit (126). If it has, it determines if a channel on the second system is available (128). If available, a transfer of the call from the first to the second system will be attempted (132).

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