A3LA-R-MIL-MOD User Guide Version B
Document Number: 451-93156-001A
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A3LA-R 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
B.120 +CHLD
–
C
ALL
H
OLD AND
M
ULTIPARTY
Note: While this command is implemented in the A3LA-R, it may not yet be supported
in the Iridium network. Stand by for an Iridium Technical Bulletin announcing network
support for this feature.
This command is based on GSM 07.07 [2] subclause 7.12, and is used to invoke the
HOLD and MPTY supplementary services for switching between held calls, etc. The
values of <n> are the same as those that a user can enter via a numeric keypad, as
described in GSM 02.30 [5] subclause 4.5.5.
Command
Possible Response(s)
+CHLD=
None (command ignored without error)
+CHLD=<n>
When command unsuccessful
+CME ERROR: <err>
When command successful
OK
Test command
+CHLD=?
List of supported <n>s
+CHLD:(0,1,1x,2,2x,3)
