Answering system and method for automatically hanging up or putting through incoming calls

A method of an answering system for automatically putting through an incoming call or hanging up a current call made by a second mobile phone to a first mobile phone, the method comprising:

• receiving an incoming call by a communication unit of the first mobile phone;
• detecting position states of the first mobile phone by a position sensor, the position states comprising a balanced state and an unbalanced state;
• recording sound and generating a sound sample by a microphone;
• and
• putting through the incoming call when the first mobile phone is unbalanced and the sound sample comprising sound which is louder than a reference level of environmental noise in a preset time;
• and
• hanging up the current call made by the second mobile phone when the sound sample comprising no sound which is louder than the reference level of environmental noise in the preset time and the first mobile phone is balanced.