4 note, 18 telephone firewall +tsfw, 1 description – Rainbow Electronics 900 User Manual
Page 40: 2 syntax, 18 telephone, Firewall +tsfw

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1
aux micro and earphone.
5.17.4 Note:
If exist call now, this command is not supported. In this case, return error 4(Not support).
5.18 Telephone firewall +TSFW
5.18.1 Description:
This specific command is used to set the telephone firewall.
5.18.2 Syntax:
Command syntax: AT+TSFW=m,
Command
Possible responses
AT+TSFW=3,0,331234,234534,12343
Note: Set rejected phone number
+TSFW: 3
OK
Note: 3 phone numbers have been added into
the phone firewall list
AT+TSFW =2,1,334234,34523
Note : Set acceptable phone number
+TSFW: 2
OK
Note: The flag is changed and old list should
be empty. Then 2 phone numbers have been
added into the new list
AT+ TSFW =2,1,234325,213423
Note: Set acceptable phone number
+TSFW: 4
OK
Note: The flag is the same as the last. 2 phone
numbers added into the list. The current list
has 4 recorders.
AT+TSFW =0
Note: Delete all recorders
+TSFW: 0
OK
Note: Delete successfully
AT+TSFW =?
Note: Get current the reorders’ number of the list
+TSFW: 4
OK
Note: Current reorders’ number