User Manual

Iridium Communications, Inc. Information Contained in this Guide

Iridium 9523 Product Developers’ Guide is Subject to Change Without Notice

Revision 2.6

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“SC” SIM (SIM Card PIN Code)

“P2” SIM PIN2 (SIM Card PIN2 Code)

“AB” Call Barring password (single password used for all call barring supplementary services)

Note: AT+CPWD=”SC”,<oldpwd>,<newpwd> will return “Error” unless the SIM Card Pin Code is

currently activated (see AT command Facility Lock +CLCK).

Note: A user interface may prompt the user for two copies of the new password, in which case it should

check the two are identical as only one copy is needed for this command.

Test Command: +CPWD=?

Test command returns a list of pairs which present the available facilities and the maximum length of their

password. Response is in the form:

+CPWD: list of supported (<fac>,<pwdlength>)s

where <pwdlength> indicates the maximum length for the password.

Note: +CPWD is closely related to +CLCK and +CPIN. See these commands for additional information.

5.7.119 +CSDT – Sidetone

Exec Command: +CSDT=<sidetone enabled>

This command controls the transceiver board sidetone generation. Enabling sidetone will cause the

Iridium 9523 to start sidetone generation. Disabling sidetone will cause the Iridium 9523 to stop sidetone

generation. The following parameter values are currently supported:

< sidetone enabled >:

1 Enable sidetone

0 Disable sidetone

Query Command: +CSDT?

This command returns the current transceiver board sidetone generation state. 1 = enabled, 0 = disabled.

Test Command: +CSDT=?

Test command returns a list of valid values. Response is in the form:

+CSDT: list of supported modes

5.7.120 +CHLD – Call Hold and Multiparty

Command Possible response(s)

+CHLD= None (command ignored without error)

+CHLD=<n>

When command unsuccessful

+CME ERROR: <err>

When command successful

Test command

+CHLD=?

List of supported <n>s

+CHLD:(0,1,1x,2,2x,3)