User Manual
Aolynk EP302 IP Phone
8 Appendix – Glossary
61
Acronym
Item
Explanation
UDP
User
Datagram
Protocol
A connectionless-oriented protocol that operates on
the transport layer.
User
Directory
List of users and the corresponding telephone
numbers in a local network.
UI
User
Interface
Interfaces used for interactions between users and
the system.
VLAN
Virtual Local
Area Network
In brief, a VLAN is a broadcast domain that can form a
logical LAN across physical devices.
VAD
Voice Activity
Detection
VAD implements voice data analysis to distinguish
non-voice frames generated when the parties of the
call do not speak from voice frames generated when
the parties are speaking.
VoIP
Voice over
Internet
Protocol
IP telephone services that send voice information via
IP-based networks.
Volume
Control
This is to adjust the volumes output by components on
the telephone.
Warm
Line
When a warmline number is configured on a phone, if
no key is pressed within a pre-defined period after the
handset is picked up, the phone will place a call to the
warmline number automatically.