Signaling System No. 7 (SS7/C7) - Protocol, Architecture and Services (Full Book)
     
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U - V - W

UDP— User Datagram Protocol

UE— User Equipment

Um— Air interface

UTRAN— UMTS Terrestrial Radio Access Network

UMTS— Universal Mobile Telecommunications System

UNI— User-to-Network Interface

UPA— User Part Available

UTRA— Universal Terrestrial Radio Access

UTRAN— Universal Terrestrial Radio Access Network

VC— Virtual Circuit

VLR— Visitor Location Register

VHE— Virtual Home Environment

VoIP— Voice over IP

VPN— Virtual Private Network

WATS— Wide-Area Telephone Service

W-CDMA— Wideband CDMA, Wideband Code Division Multiple Access

WiFi— Wireless Fidelity

WIN— Wireless Intelligent Network

WLAN— Wireless LAN

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