US Patent 7697675 Multiparty call of portable devices with party positioning identification

A portable communication device engages in voice communication with a plurality of parties by establishing connections between the portable communication device and at least two other parties, positioning the other connected parties at different positions in space in relation to the portable communication device, and providing information in relation to the position of one of the other connected parties when this connected party provides audio information over the connection so that the user of the device can identify which party is active.