User Manual
User's Manual
18
+FRH=
<value>
Receives data using HDLC protocol and the defined modulation .
ERROR is issued if modem is on-hook.
<value> - 3 (V.21 channel 2 300 bps)
+FRH=? Return “3”
+FTH=
<value>
Transmits data using HDLC protocol and the defined modulation .
ERROR is issued if modem is on-hook.
<value> - 3 (V.21 channel 2 300 bps)
+FTH=? Return “3”
AT* Commands – Black List Support
Note: The following command will always return OK as a result code.
*B Return Blacklisted numbers
Blacklisting is a country dependent parameter.
When no time-out is defined:
When a number is unsuccessfully called x successive times, it is blocked altogether, until next
system reset.
Further calls will return BLACKLISTED code.
When time-out is defined:
When a number is unsuccessfully called x successive times, it is blocked temporarily until the
time-out expires.
Calls within the time-out period will return DELAYED code.
Format:
No. Called Blocked Phone
Index # of calls ‘ ‘ (blank) Phone number
- not blocked
(number still candidate for blacklist)
or
‘*’ (asterisk) - blacklisted/blocked
or
‘Xmin’ - # of min to time-out – delayed
Example 1: No time-out defined. Full blocking occurs
No. Called Blocked Phone
1 5 * t1234
2 3 t5678
Example 2: Time-out defined. Delay scheme used.
No. Called Blocked Phone
1 5 2min t1234
2 3 t5678










