Abstract: A wireless network including a backbone and a plurality of access points coupled to the backbone. The wireless network further includes a plurality of portable data terminals having a keypad, a barcode reader, and voice communication circuitry. The portable data terminals also include an RF transceiver for wirelessly communicating both data and audio communication with the backbone via one of the plurality of access points. The wireless network includes a host computer coupled to the backbone which receives at least a portion of the data transmitted from the plurality of portable data terminals and a gateway coupled to the backbone which receives at least a portion of the audio communication transmitted from the plurality of portable data terminals. The gateway further serves to establish a pseudo full duplex audio communication link between the plurality of portable data terminals and/or between a portable data terminal and a device coupled to a public telephone exchange via a PBX interface.