Patent ID: 6049713
Filing Date: 2000-04-11
Classification: H04Q,H04W

Abstract:
A method in a radio telecommunications network of storing calling line identification (CLI) information and forwarding said CLI information to a called mobile terminal, said radio telecommunications network including a serving mobile switching center (MSC) in which said mobile terminal is operating said method comprising the steps of:receiving an incoming call for said mobile terminal in said radio telecommunications network;determining by the network, that said mobile terminal is unavailable to receive the incoming call;storing the CLI information in a network-level message center;determining by the network, that said mobile terminal has become available to receive the CLI information; andforwarding the CLI information from said message center to said mobile terminal when said mobile terminal becomes available to receive the CLI information, said step of forwarding said CLI information from said message center to said mobile terminal including the steps of:assigning to a higher layer protocol identifier (HLPI), a value associated with CLI information;placing said CLI information in a higher layer protocol data unit (HLPDU) appended to said HLPI; andsending said HLPI and said HLPDU in a R-DATA message from said serving MSC to said mobile terminal.