05826188 is referenced by 111 patents and cites 6 patents.

A method for handing off calls between differing radio telecommunication networks recognizes (302) a desire for an inter-network hand-off. When a Subscriber Unit (120) (SU) identifies (304) a new network, a hand-off with the new network can be requested (320). When the SU (120) does not identify (304) a new network, the old network requests (314) location information relevant to an inter-network hand-off from a Location Inter-Working Server (200) (LIWS). The LIWS (200) provides information about other networks which provide service to the SU location and, when another network provides service to the SU location, a hand-off with the other network can be requested (320).

Title
Method and apparatus for handing off calls between differing radio telecommunication networks
Application Number
8/568928
Publication Number
5826188
Application Date
December 7, 1995
Publication Date
October 20, 1998
Inventor
William Neil Robinson
Farnham
GB
James William Bishop Jr
Chandler
AZ, US
Johanna Alexandra Wild
Scottsdale
AZ, US
Daniel Richard Tayloe
Phoenix
AZ, US
Agent
Sherry J Whitney
Assignee
Motorola
IL, US
IPC
H04B 7/185
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