User's Manual
Pleaseconfirmthe(U)SIMcardisvalid.
Pleaseconfirmwhetherthecallrestrictionfunctionissetup.
Pleaseconfirmwhetherthefixeddialfunctionissetup.
Badcallquality:
Checkwhetherthevolumeisadjustedappropriately.
Use the phone at the place where the receiving quality is not good,
suchasneartothebuildingorinthebasementwheretheradiowave
cannotreach.
Use the phone atthepeak time, such as at the time of going on/off
theduty,thechanneliscongested.
Contactcannotcallyou:
Please confirm that the phone is powered on and is uplinked with
network;
Pleaseconfirmthatthecallisbarredbecauseofownedtoll;
Pleaseconfirmwhetherthe(U)SIMcardisvalid;
Pleaseconfirmwhetherthefixeddialfunctionissetup;
Contactcannothearyou:
Pleaseconfirmthatthemicrophoneareaisfreeofdebris.
Pleasekeepthemicrophoneatthebottomofthephoneclosetoyour
mouth.
Shortstandbytime
The stand‐by time is relevant to the system setup. The phone is
possibly at the place where the signal state is bad. When the phone
cannot receive the signal, the phone will transmitto search the base
station continuously; consuming a great deal of battery capacity and
shorteningthestand‐bytimeof the battery.Pleasemove to the place
wherethe signal is strongtouse thephone ortempor arily powerthe
phoneoff.
Thebatteryrequiresreplacmentwithanewbattery.
Cannotcharge:
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