User Manual

19. SUPPLEMENTARY SERVICES
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LZT 123 7263 R1A
19.13 AT+CLIR Calling Line Identification Restriction
This command refers to CLIR-service according to GSM 02.81 [6] that
allows a calling subscriber to enable or disable the presentation of the
CLI to the called party when originating a call.
Set command overrides the CLIR subscription (default is restricted or
allowed) when temporary mode is provisioned as a default adjustment
for all following outgoing calls. Using the opposite command can
revoke this adjustment. If this command is used by a subscriber without
provision of CLIR in permanent mode the network will act according
GSM 02.81 [6].
The setting shall be per logical channel.
When the MS is turned off and then turned on again the parameter
setting <n> shall turn back to default, i.e. the presentation of CLI shall
be used according to the subscription of the CLIR service, <n> is 0.
Read command gives the default adjustment for all outgoing calls
(given in <n>), and also triggers an interrogation of the provision status
of the CLIR service (given in <m>).
Test command returns values supported by the TA as a compound
value.
Note! On a per call base CLIR functionality is explained in subclause “ITU-T
V.25ter [13] dial command”.
Description Command Possible Responses
Request calling line
identification restriction
AT+CLIR=[<n>] • +CME ERROR <err>
•OK
•ERROR
Read the current
setting
AT+CLIR? •+CLIR:<n>,<m>
• +CME ERROR <err>
•OK
•ERROR
Test if the command is
supported
AT+CLIR=? •+CLIR:(listof
supported <n>s)
• +CME ERROR <err>
•OK
•ERROR
<n> Description
0 Presentation indicator is used according to the
subscription of the CLIR service
1 CLIR invocation
2 CLIR suppression