Specifications

ISU AT Command Reference Phase VI AT Commands
Iridium Proprietary Version 2.45
20 June 2011 87
detached.
2 Registered – ISU is attached with a good location. Note that this may be the case even
when the most recent attempt did not provide a good location.
3 Registration denied – The GSS is denying service to the ISU.
<reg err>:
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.
ISU-reported values:
16 ISU 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 ISU 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: +SBDREG?
Query the current SBD registration status of the ISU. The response is of the form:
+SBDREG:<status>
<status>:
0 Detached
1 Not registered
2 Registered
3 Registration denied
The registration status is stored in ISU non-volatile memory, and can therefore be queried by the FA after
powering up.
10.18 +SBDAREG - Short Burst Data: Automatic Registration
Exec Command: +SBDAREG=<mode>
Set the ISU’s Auto-registration mode.
<mode>:
0 Disable automatic registration (default).
1 Set the Auto-registration mode to “Automatic”.
2 Set the Auto-registration mode to “Ask”.
When auto-registration is enabled, mode 1 or 2, the ISU monitors its current location and triggers an SBD