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DWG2000 GSM/CDMA/WCDMA User
Manual
43
Copyright @ 2015
The ‘set call volume threshold function’ is mainly used for anti blocked (such as some operators launched
special call testing for the detection of the VoIP equipment, call volume may is mute or great noise) .
4.16.3
Balance Check
On the
Balance Check
interface, you can check the balance of a SIM card.