Vanguard Managed Solutions Vanguard 7300 Series Benutzerhandbuch

Glossary-4

UDP

User Datagram Protocol

UTP/STP

Unshielded Twisted Pair/Shielded Twisted Pair

V.35/V.36

ITU-T standard synchronous physical layer protocol between 
a network access device and a packet network.

VAD

Voice Activity Detection 

VLAN

Virtual Local Area Network

VME

VersaModule Eurocard

VoFR

Voice over Frame Relay

VoIP 

Voice over Internet Protocol

WAN

Wide Area Network

X.21

ITU-T standard serial communications over synchronous 
digital lines used primarily in Europe and Japan

X.25

CCITT recommendation for interface between data terminal 
equipment and packet-switched data networks.

 

(See Telnet.)

ZAP

Console terminal command-line utility