A portable data terminal for use in a portable data collection network including a backbone network and a plurality of access points coupled to the backbone network. The portable data terminal includes a keypad for inputting data; a barcode reader for inputting barcode information an RF transceiver for...http://www.google.fr/patents/US6424830?utm_source=gb-gplus-shareBrevet US6424830 - Portable data collection network with telephone and voice mail capability
Portable data collection network with telephone and voice mail capability
