Configuring the network is done by sending management commands to the cells that set values on parameters or read these parameter values. This is complicated because each cell has literally hundreds of parameters. The set of frequencies the cell may use Output antenna power settings Relationship to neighbouring cells. E.g. to which cells and when should a handover take place between two cells. Handover strategy, under what conditions can a handover take place Access rights from mobile phones.
Calls can only allow emergency calls or a certain class of mobile telephones.
Mobile phone parameters. The cell fully controls the operation of the mobile phone and can set many of its operating parameters. Connection to the available hardware Many, many others Several of these parameters are dependent on, and constrained by, the settings of other parameters in other cells. For example, neighboring cells should always use different frequencies. Also, each cell needs to know what its neighbors are.