User manual

Confidential, the whole present document is the sole property of Maestro Wireless Solution Ltd.
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14 CALL SCREENING
This feature enable Maestro 100 2G to reject incoming call if the phone number does not match one of the entries of
authorized phone number list. Unauthorized incoming call will be hanged up within one ring.
Up to 10 authorized phone numbers can be stored. Each number can be as long as characters
Waiting call can also be rejected.
14.1 AT command for configuring call screening
14.1.1 AT+CSRN command
This command is to enable or disable call screening feature.
Command Syntax:
AT+CSRN=<mode>
Response syntax:
+CSRN: <mode>
Command
Possible responses:
AT+CSRN=0
OK
Note : disable call screening
AT+CSRN=1
OK
Enable call screening
AT+CSRN?
+CSRN : 1
Note display current status
AT+CSRN=?
+CSRN: (0-1)
Note : possible argument
Defined Values :
<mode>
0 disable call screening
1 enable call screening
Note :
- To use call screening make sure Caller ID service is enabled otherwise all incoming call will be rejected.
- To apply call screening to waiting call please first enable Call waiting indication by command AT=CCWA=1,1
- Rejected incoming will not be diverted to voice mail.
14.1.2 AT+CSNW command
This command is to enter authorized phone number.
Command Syntax:
AT+CSNW=<id>,<num>
Response syntax:
OK