A2X(W)/A20LTE IP Phone User Manual
ATCOM TECHNOLOGY CO., LIMITE
www.atcom.cn
98
9. Abbreviation
DND
:
Do Not Disturb
CFWD
:
Call Forward
Bxfer
:
Blind Transfer
Conf
:
Conference
Num
:
Number
SIP
:
Session Initiate Protocol
RTP
:
Real-time Transport Protocol
SDP
:
Session Description Protocol
VPN
:
Virtual Private Network
VLAN
:
Virtual Local Area Network
QoS
:
Quality of Service
Syslog
:
System log
UDP
:
User Data Protocol
TCP
:
Transmission Control Protocol
TLS
:
Transport Layer Security Protocol
BLF
:
Busy Lamp Field
DNS
:
Domain Name System
SRTP
:
Secure Real-time Transport Protocol
NTP
:
Network Time Protocol
VAD
:
Voice Activity Detection
CNG
:
Comfort Noise Generator