NAL Research Corporation (TN2012-02-V1.0)
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Upon triggering in mode 1, “Automatic”, the A3LA-RS autonomously initiates an SBD session in
order to perform a registration with its updated location. This session does not transfer any MO
or MT messages.
Upon triggering in mode 2, “Ask”, the A3LA-RS reports to the DTE that it should register with
the system because its location has changed (see <event> below); it is then the responsibility
of the DTE to register via +SBDREG or +SBDIX. +SBDIX allows the DTE to register while
including an MO message and/or retrieving any MT message that is pending at the GSS.
When auto-registration is enabled, mode 1 or 2, the A3LA-RS reports relevant events to the
DTE by issuing an unsolicited result code +AREG:<event>,<reg error>.
<event>:
0
Suggest DTE makes a registration attempt (mode 2 only)
1
Auto-registration has been performed successfully (mode 1 only)
2
Auto-registration has failed and will be retried after a delay (mode 1 only)
<reg error>:
Gateway-reported values:
0
No error
2
Session completed but the requested Location Update was not accepted
3..14 Reserved, but indicate Location Update failure if used
15
Access is denied
A3LA-RS-reported values:
16
A3LA-RS has been locked and may not make SBD calls (see +CULK command)
17
Gateway not responding (local session timeout)
18
Connection lost (RF drop)
19
Link failure (A protocol error caused termination of the call)
20..31 Reserved, but indicate failure if used
32
No network service, unable to initiate call
33..34 Reserved, but indicate failure if used
35
A3LA-RS is busy, unable to initiate call
36
Try later, must wait 3 minutes since last registration
37..
Reserved, but indicate failure if used
Read Command:
+SBDAREG?
Query the current automatic MT registration mode. The response is of the form:
+SBDAREG:<mode>
Test Command:
+SBDAREG=?
List the supported mode settings. The response is of the form:
+SBDAREG:(supported <mode> settings)
A.8.111 +SBDSX – Short Burst Data: Status Extended
Exec Command:
+SBDSX