User guide

Developers guidelines | AT commands
109 June 2010
AT+CLIR Calling line identification restriction
Note: When CLI is not available (<CLI validity>=2), <number> will be an empty string (““) and
<type> value will not be significant. Nevertheless, the phone may return the recommended value
128 for <type> (TON/NPI unknown in accordance with GSM 04.08 subclause 10.5.4.7).
When CLI has been withheld by the originator, (<CLI validity>=1) and the CLIP is provisioned with
the “override category” option (refer to 3GPP TS 22.081 and 3GPP TS 23.081), <number> and
<type> is provided. Otherwise, the phone will return the same setting for <number> and <type>
as if the CLI was not available.
Description: This command refers to CLIR-service according to 3GPP TS 22.081 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 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 to 3GPP TS 22.081.
Set command writes directly to non-volatile memory so that the setting is
preserved also after turning off/on the MS. The &F command does not
affect the setting.
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.
Set command: AT+CLIR=[<n>]
Read command: AT+CLIR? Displays the current <n> and <m> settings.
Test command: AT+CLIR=? Shows if the command is supported.
Test command
response: +CLIR: (list of supported <n>s)
Parameters:
<n>:
<n> Description
0 Presentation indicator is used according to the
subscription of the CLIR service. Default value
1 CLIR invocation, that is, number is hidden
2 CLIR suppression, that is, number is shown
<m>:
<m> Description
0 CLIR not provisioned
1 CLIR provisioned in permanent mode
2 Unknown, for example, no network
3 CLIR temporary mode presentation restricted
4 CLIR temporary mode presentation allowed