A spread spectrum wireless pbx

The present invention relates to a wireless PBX network wherein direct sequence spread spectrum multiple access is used for voice and data communications to support a plurality of local-local and local-external calls. The present wireless PBX arrangement comprises a plurality of local user transceivers 10i using a first separate unique chip sequence patterns for information communication and a second common chip sequence pattern for call-set up; and a central PBX 14 comprising (a) a plurality of PBX transceivers 15i, each of which uses a separate first chip sequence pattern which is matched to a corresponding local user transceiver; (b) a switching means 18 for interconnecting local users to each other or to an external network via the associated PBX transceivers; and (c) a call set-up receiver 19 responsive solely to initial call set-up information sent by any user using the second common chip sequence pattern. Optional selection diversity or equal gain combining diversity and/or error correction encoding may also be included in the transceivers.