DAG1000/2000 Series FXS Voice Gateway User Manual
51
5.
Glossary
•
DNS
:
Domain Name System
•
SIP
:
Session Initiation Protocol
•
TCP
:
Transmission Control Protocol
•
UDP
:
User Datagram Protocol
•
RTP
:
Real Time Protocol
•
PPPOE
:
point-to-point protocol over Ethernet
•
VLAN
:
Virtual Local Area Network
•
ARP
:
Address Resolution Protocol
•
CID
:
Caller Identity
•
DND
:
Do NOT Disturb
•
DTMF
:
Dual Tone Multi Frequency
•
NTP
:
Network Time Protocol
•
DMZ
:
Demilitarized Zone
•
STUN
:
Simple Traversal of UDP over NAT
•
PSTN
:
Public Switched Telephone Network