Mobile telephone for hands-free conference calls has microphone with directional characteristic for multiple hands-free use, loudspeaker for speech reproduction for several users

摘要

The mobile telephone has a microphone whose directional characteristic allows hands-free use by several persons and a loudspeaker ensuring comprehensible reproduction of speech for several participants. Conference mode can be activated and deactivated and the activation and deactivation can be performed over the radio channel. Independent claims are also included for the following: a hands-free conference method.