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1. INTRODUCTION
Thank you for purchasing the WLAN VoIP Residential Gateway
which is designed to aim at
FTTX applications. This WLAN VoIP Residential Gateway provides four TP ports for LAN
applications, one fiber optic or TP port for WAN, two sets of FXS telephony ports and built-in
IEEE 802.11b/g wireless LAN (To use CATV application, please purchase the WLAN VoIP
Residential Gateway with RF module installed). The combination of wireless and VoIP
function provides users not only more flexible ways to enjoy bandwidth-intensive services
but also more secure internetwork connections by implementing access control policies.
The wireless function of this Gateway conforms to IEEE 802.11b/g standards that can
provide speed rate up to 54Mbps when used with other 802.11g wireless products. To
enhance wireless connections to reach further, the detachable SMA antenna, dispersing the
same amount of power in all directions, can be used to receive and deliver stable and high-
gain transmissions. The WLAN VoIP Residential Gateway also supports WPA/WPA2
authentication methods and 64/128-bit data encryption to implement strict security
protection so as to prevent your wireless networks from unauthorized uses or possible
malicious attacks. Other security mechanisms provided that can protect your network
including the uses of disabling SSID broadcast function, MAC filtering, URL filtering, DDoS
protection.
For VoIP applications, the internationally recognized standards, SIP (Session Initiation
Protocol), have been employed to manage multimedia communication sessions so that
users can use traditional analog telephones to make telephone calls to IP telephones over
the Internet. Calls received from IP telephones work exactly the same as you would expect
from the traditional telephone service. Other WLAN VoIP Residential Gateway’s features are:
Voice Activity Detection (VAD) / Silence Suppression
which
reduces the bandwidth that a
call uses by not transmitting when you are not speaking; Comfort Noise Generation that is
the background noise the device generates to fill moments of silence when the other device
in a call stops transmitting because the other party is not speaking (as total silence could
easily be mistaken for a lost connection); Echo Cancellation which is WLAN VoIP
Residential Gateway’s supporting G.168, an ITU-T standard for eliminating the echo caused
by the sound of your voice reverberating in the telephone receiver while you talk.
The WLAN VoIP Residential Gateway is mainly dedicated to the FTTX broadband service
providers who look for a way of delivering multiple IP services to the home users. The fiber
optic port supports a connection distance of from 2KM to 20KM, or more than 100KM by
multi-mode optical fiber, single-mode optical fiber (SMF), or bi-direction SMF which can be
used for apartment, house, or campus. To easily manage and maintain the device,
advanced network settings are configurable via Web-based Management such as Firmware
upgrade. The featured NAT and DHCP server functions also allow you to use a hub or
switch to establish a private network depending on your personal needs that allows multiple
computers to share a single Internet connection.
