Chapter 14
Call screening
This feature enables modem 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 Enabling call screening
AT+CSRN
This command is to enable or disable call screening feature.
Syntax: AT+CSRN=<mode>
Response: +CSRN: <mode>
Defined Values:
<mode> 0 disable call screening
1 enable call screening
Example:
Command Response
AT+CSRN=0 OK
Note: disable call screening
AT+CSRN=1 OK
Note: enable call screening
AT+CSRN? +CSRN: 1
OK
AT+CSRN=? +CSRN: (0-1)
OK
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.
Confidential, the whole document is the sole property of Maestro Wireless Solutions ltd.
support@maestro-wireless.com
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