Updating location information
The Temporary Mobile Subscriber Identity (TMSI) is the identity that is most commonly sent between the mobile and the network.TMSI is randomly assigned by the VLR to every mobile in the area, the moment it is switched on.The number is local to a location area, and so it has to be updated each time the mobile moves to a new geographical area.The network can also change the TMSI of the mobile at any time.
Roaming is technically supported by a mobility management, authentication, authorization and billing procedures.If your license record reflects information which is no longer current (wrong address, employing broker, etc.), you can use the e Licensing online system to update your license record immediately. The addition or removal of family members may change your bedroom size, but your ranking will always remain the same.By integrating the coverage of each of these base stations, a cellular network provides a radio coverage over a much wider area.A group of base stations is named a location area, or a routing area.