Iridium 9601 Product Developer Manual page 45

Iridium Satellite LLC
9601 SBD Transceiver Preliminary Product Developers Guide Appendix A –AT Command Reference
V1.24 120505
2.33 +SBDI –Short Burst Data: Initiate an SBD Session
Note: The command is provided for backwards compatibility with existing FAs
+SBDI
which do not use SBD Automatic Notification functionality. For SBD calls invoked with
this command:
 The SBD Session Type is fixed at type 0 –MO call.
 The SBD Delivery Short Code will be the value specified by the
 The Detach/Attach flag is fixed at the Detach setting.
 The Location Update flag is fixed at the No Update setting.
FAs requiring SBD Automatic Notification functionality should use the extended
command.
Exec Command:
+SBDI
This command initiates an SBD session between the 9601 and the GSS. If there is a
message in the mobile originated buffer it will be transferred to the GSS. Similarly if
there is one or more messages queued at the GSS the oldest will be transferred to the
9601 and placed into the mobile terminated buffer.
 The message, if any, in the mobile originated buffer will be sent from the 9601 to the
GSS.
 If there is a message queued at the GSS it will be transferred to the 9601 and placed
into the mobile terminated buffer.
Command Response:
+SBDI:<MO status>,<MOMSN>,<MT status>,<MTMSN>,<MT length>,<MT queued>
where:
:
<MO status>
MO session status provides an indication of the disposition of the mobile originated
transaction. The field can take on the following values:
No SBD message to send from the 9601.
0
SBD message successfully sent from the 9601 to the GSS.
1
An error occurred while attempting to send SBD message from 9601 to
2
GSS.
:
<MOMSN>
The Mobile Originated Message Sequence Number (MOMSN) is a value assigned by
the 9601 when sending a mobile-originated message to the GSS. This value is
incremented each time an SBD session is successfully completed between the 9601 to
the GSS. This wrap around counter can range from 0 to 65535.
:
<MT status>
Iridium Satellite LLC Proprietary & Confidential Information
Information contained herein is subject to change without further notice
command.
+SBDDSC
+SBDIX
45