Confidential
USERS MANUAL
33(158)
Document number
Revision
1/198 17-4/FCP 101 3045 Uen
D
4.2.6
AT+CPAS (Phone Activity State)
Description
Syntax
Possible responses
Reads the activity status
AT+CPAS=<value>
+CPAS: <state>
OK
Execution of this command returns the activity state <state> of the CM52. This command can be used to
interrogate the CM52 before issuing a request.
Parameter
Description
<value>
0
Report <state> only
<state>
Activity state
0 Idle
2 Origination
3 Connected
6 Incoming
Call
20 Scanning
4.2.7
AT+CSQ (Signal Quality)
Description
Syntax
Possible responses
Reads received signal
strength.
AT+CSQ?
+CSQ: <rssi>,<ber>
OK
Execution of this command returns the received signal strength indication <rssi> and channel bit error rate
<ber>. This command displays the signal strength as an integer in the range of 0-31, where 0 represents
signals less than or equal to –113 dBm, and 31 represents signals greater than or equal to –51 dBm. The
integer values of 1-30 represent 2 dBm steps between these two extremes.
Example
(CM52 response in gray)
AT+CSQ?
+CSQ: 16,99
Signal strength = -81 dBm and bit error rate is unknown
OK
Note:
CDMA RSSI reporting consists of the receive channel power and the pilot energy (Ec/Io). To receive
the above response, a communication analyzer would be set as follows:
Communication Analyzer downlink level = -74 dBm
Communication Analyzer Pilot Offset =
-7 dB (typical default setting)
Additionally, the BER value is only valid under the following conditions:
•
Must be In CDMA mode
•
Must be in conversation state
•
Frames actually had to have been sent
