2288301-A is referenced by 26 patents and cites 5 patents.

In a method for handing over a call from an initial communications network to a target communications network, a call is established between a mobile subscriber unit (12) and the initial communications network (10 or 11) using a first identification number allocated to that unit in the initial network. A desire to handover to the target network is identified and a new link in the target network (11 or 10 respectively) is established using a second identification number allocated to the unit (12) in the target network.

Methods and apparatus for call handover between different mobile radio networks
Application Number
GB19940006697 19940405
Publication Number
2288301 (A)
Application Date
April 5, 1994
Publication Date
October 11, 1995
Van Den Heuvel Anthony Patrick
Gibbs Jonathan Alastair
Robinson William Neil
Whinnett Nicholas William
H04Q 07/22
H04W 36/00
H04W 36/14
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