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