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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To Transceiver
(from FA)
To FA (from Transceiver) Description
OK
+CR: REL ASYNC
Call connected at FA rate of 9600
CONNECT ASYNC 9600
8.9 Answering a Data Call
The Iridium 9523 is capable of accepting mobile terminated data calls. The following is a sequence of
commands that can be used to establish the connection.
To Transceiver
(from FA)
To FA (from Transceiver) Description
RING
Indicates arrival of call request
ATA
Manually answer the call
CONNECT 9600
Call connected at FA rate of 9600
ATS0=2
To automatically answer a call, register 0
should be set to a non-zero value
RING
Indicates arrival of call request
CONNECT
Call connected at FA rate of 9600
8.10 Disconnecting a Data Call
To Transceiver
(from FA)
To FA (from Transceiver) Description
AT+CBST=6,0,1
Asynchronous modem 4800 bps and
IRLP
OK
AT+CR=1
Enable reporting
OK
ATD1234567890
Dial remote modem
OK
+CR: REL ASYNC
Call connected at FA rate of 9600
CONNECT ASYNC 9600
… … Data transfer
<+++>
Send escape sequence
OK
ATH0
Hang up call
OK
8.11 Originating and Disconnecting a Voice Call
An example of how to make and disconnect a voice call is given below:
To Transceiver
(from FA)
To FA (from Transceiver) Description
ATD1234567890
Dial remote phone
OK
Call connected; phone stays in command
mode
Conversation
ATH0
Hang up call
OK