Overview; Acronyms Table - Soundwin VoIP Voice Gateway User Manual

warranty. We reserve the right to revise the manual and online documentation and to make
changes from time to time in the contents hereof without obligation to notify any person of such
revision or changes.
Note
Repair or replacement, as provided under this warranty, is the exclusive remedy of the
purchaser. This warranty is in lieu of all other warranties, express or implied, including any
implied warranty of merchantability or fitness for a particular use or purpose. We shall in no
event be held liable for indirect or consequential damages of any kind of character to the
purchaser.
To obtain the services of this warranty, contact us for your Return Material Authorization
number (RMA). Products must be returned Postage Prepaid. It is recommended that the unit
be insured when shipped. Any returned products without proof of purchase or those with an
out-dated warranty will be repaired or replaced and the customer will be billed for parts and
labor. All repaired or replaced products will be shipped by us to the corresponding return
address, Postage Paid. This warranty gives you specific legal rights, and you may also have
other rights that vary from country to country.
Introduce
L / S series VoIP Gateway and Call Manager are the low to high VoIP total Solutions. This
document describes the usage of Voice gateway and Call Manager.

1.1 Overview

VoIP Gateway which is a device that allows one to connect a normal PSTN telephone to the
Internet in order to make or place telephone calls.
VoIP Gateway device may work in conjunction with a computer, such as an IP-sharing /
Router, or it may be a stand-alone device that communicates with a service provider over the
Internet.
VoIP Gateway provides a direct analog interface for computer modems, fax machines, analog
telephones, and other devices that require an analog port.
2/4/8 port Series VoIP Gateway can build in a simple H.323 Gatekeeper or SIP Proxy Server.
VoIP Gateway also support standard Internet services, such as IP-Sharing, NAT, Virtual
Server, DDNS, QOS, Port Filter, IP Filter function.

1.2 Acronyms Table

Acronym: Full Name:
ADC Analog to Digital Converter
DAC Digital to Analog Converter
DDNS Dynamic Domain Name System
DMZ Demilitarized Zone
DTMF Dual Tone Multi Frequency
FXS Foreign Exchange Station
IP Internet Protocol
L2TP The Layer 2 Tunnel Protocol
WAN Wide Area Network
MII Media Independent Interface
NTP Network Time Protocol
RTP Real-Time Transport Protocol
Acronym: Full Name:
CODEC Coder / Decoder
DC Direct Current
DHCP Dynamic Host Configuration
Protocol
DNS Domain Name System
FXO Foreign Exchange Office
GMT Greenwich Mean Time
IPsec Internet Protocol Security
LAN Local Area Network
MAC Media Access Control
NAT Network Address Translation
PPTP Point-to-Point Tunneling Protocol
RTCP Real-Time Transport Control
Protocol (also known as RTP
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