British Telecommunications Public Limited Company

British Telecommunications Corporation

Christopher John Fenton

Alan J Clapton

Mark Anderson

Jagmohan S Rai

John A Lyle

Shaun Wright

A user is registered to use telecommunications services provided by a home service provider in a wired home network. When the user travels, the user may be provided with telecommunications services by another service provider operating in a wired visited fixed network. The user 'attaches' himself/herself to the visited fixed network which includes nominating a telephone to which calls made to a user's personal number may be forwarded. The user is also assigned a prefix number which enables him/her to make calls from any phone in the visited fixed network.

Mobility management

A home agent, attached to a home network, receives, adapts and forwards messages intended for a mobile node attached to one of a plurality foreign networks. The home agent, having received a message, passes the message on to a processing unit to assess whether the message should be adapted so as to be compatible with the destination foreign network and to adapt the message accordingly. The adapted message is returned to the home agent to be encapsulated and tunnelled to a foreign agent attached to the destination foreign network. The foreign agent decapsulates the message and passes it on to the mobile node. This method has the advantage that the mobile node is able to receive messages regardless of the type of network to which it is attached.

Method and apparatus for routing data to/from a mobile user

Short code dialling

Growing community of inventors

Ipswich, United Kingdom

Christopher John Fenton