After send above command, device only answer the call automatically from authorized numbers. (authorized numbers mean number A, number B, number C)
Command:
Z1
After send above command, device can answer the call automatically from all numbers.
3. Modify the Time zone
Command: TZ+
+00/-00
Note: the time must amounts be in 2 digits and at maximum 23 hours in value. "+" in the "time zone" portion of the text indicates east. The symbol "-" in the
"time zone" indicates west.
Example: tz+02, the system will add 2 hours based on the UTC time.
tz-02, the system will minus 2 hours based on the UTC time.