NAL Research Corporation (TN2012-02-V1.0)
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where <value> is:
0
Network service currently unavailable
1
Network service is available
Network service availability is equivalent to a signal strength greater than 0. The service
availability indicator provides a way for the DTE to wait until the A3LA-RS can start an SBD
session without receiving continual notifications of changes in signal strength.
Read Command:
+CIER?
Query the current indicator event reporting settings. The response is of the form:
+CIER:<mode>,<sigind>,<svcind>
Test Command:
+CIER=?
List the supported settings. The response is of the form:
+CIER: (supported <mode>s),(supported <sigind>s),(supported <svcind>s)
Note:
In <mode> 1, the DTE may miss some indicator state changes if they occur while the
data port is reserved (not in command mode). However, the buffering mechanism ensures that
the most recent change for each indicator during reservation will be flushed to the DTE on
return to command mode; thus the DTE is always made aware of the latest state of each
indicator.
A.8.95 +CRIS – Ring Indication Status
Exec Command:
+CRIS
Query the ring indication status, returning the reason for the most recent assertion of the Ring
Indicate signal. The response contains separate indications for telephony and SBD ring
indications.
The response is in the form:
+CRIS:<tri>,<sri>
where <tri> indicates the telephony ring indication status:
0
No telephony ring alert received
1
Incoming voice call
2
Incoming data call
3
Incoming fax call
and <sri> indicates the SBD ring indication status:
0
No SBD ring alert received
1
SBD ring alert received
Note:
It is valid for the A3LA-R/RM/RGS to receive a telephony ring alert and an SBD ring alert
at the same time. Assertion of the RI signal indicates only the presence of an alert; this
command may be used to determine the type(s) of ring alert.
A.8.96 +CSQ[F] – Signal Quality
Exec Command:
+CSQ[F]
Execution command returns the received signal strength indication <rssi> from the A3LA-RS.
Response is in the form: