uniform resource identifier (URI), 335, 366
Universal Description, Discovery and Integration (UDDI), 424
Universal Mobile Telecommunication System (UMTS), 80
Unstrung Web site, 111
uplink time of arrival (ULTOA), 409
User Agent Profile (UAProf), 277
User Datagram Protocol (UDP), 127
user interface, wireless Internet applications and, 259
user-to-user messaging, 103
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