Specifications︰ you put the GSM autodial with voice controller anywhere,you can hear anyone talk by it over GSM network.

1) set dial out phone number:
when you power on the board, within 5 min, you can send the SMS into the board SIM card,
5#15900000000#15900000001# , mean first number is 15900000000 and second number is 15900000001
2) set sorround voice degree to open GSM to dial out:
1#(1 to 9)# ,1 is easy to open, 9 is close
we set 4, thas is 1#4#

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