Table 4.1 gives a list of possible supplementary services implemented in the PLMN, the definitions of which are given in the specifications [6]-[18].
It has been identified as a requirement that the man-machine interface in PLMNs regarding supplementary services should be compatible as much as possible with the man-machine interface in the fixed networks as defined in CEPT groups, e.g. the same use of keypad information or function keys.
Table 4.1 lists the categories for all supported supplementary services. Below the abbreviations used are listed.
Registration:
p = as a result of provision
a = service provider controlled procedure
s = subscriber controlled procedure
- = not applicable
Erasure:
w = as a result of withdrawal
s = subscriber controlled procedure
r = due to new registration
- = not applicable
Activation:
p = as a result of provision
r = as a result of registration
s = subscriber controlled procedure
a = service provider controlled procedure
c = when the conditions in the subscription options are met
- = not applicable
Deactivation:
w = as a result of withdrawal
s = subscriber controlled procedure
a = service provider controlled procedure
e = as a result of erasure
n = when the conditions in the subscr. options are not met
c = at the end of a per call basis activation
- = not applicable
Invocation:
n = automatic invocation by the network as a result of a particular condition
u = user invocation, by means of a control procedure
A PLMN which supports the CLIP service shall also support the CLIR service. A PLMN which supports CoLP service shall also support the CoLR service.
A PLMN which does not support the CLIR service shall ensure that the line identity of a subscriber shall not be displayed to the called party unless the called party has CLIR override capability. A PLMN which does not support the CoLR service shall ensure that the line identity of a subscriber shall not be displayed to the calling party unless the calling party has CoLR override capability.
(CNAP): A PLMN which supports the CNAP service shall also support the CLIR service.
A PLMN which does not support the CLIR service shall ensure that the name identity of a subscriber shall not be displayed to the called party.