How to use
When using the phone, ensure that they Microphone is not obstructed by a case, fingers, or your hand when on a call.
※ Other factors that may affect call quality
1.Failure of base station or repeater
2.Unnecessary interference frequencies,
called spurious waves
3.When moving from the currently connected
base station to an adjacent base station or when moving between cells in a
connected base station
4.Environmental factors
- Building underground (weak signal), roof (confusion signal)
- River road (confusion signal)
- Open terrain of the city (confusion signal) etc.
