SZRUNSUN FWT:
Set IP number before the number
Set the number can not be dialed
Set rapid reaction when detecting busy signal
Lock network, lock pin
Can set auto dial till connect call
Number replacement
18)Can dial "00" to "+"
19)Black list and white list
20)Set the talk minutes or call times you want and LED will warn you to change SIM when

come up to your setting.
21)Simple to install and easy to maintain
22)Steady module & reliable design ensures good performance
23)Strong signals with high gain antenna
24)No noise & Clear voice
25)Suitable for wide voltage range & Low power consumption
26)Suitable for all kinds of weather & environment
27)Offer keypad command sets to difine functions

Tel:+86-13510581862
QQ:800035403
Skype:szrunsun