This TS specifies the procedures used at the radio interface for normal operation, registration, erasure, activation, deactivation, invocation and interrogation of line identification supplementary services. Provision and withdrawal of supplementary services is an administrative matter between the mobile subscriber and the service provider and cause no signalling on the radio interface.
The following supplementary services belong to the line identification supplementary services and are described in this TS:
Calling line identification presentation (CLIP)
Calling line identification restriction (CLIR)
Connected line identification presentation (COLP)
Connected line identification restriction (COLR)