SmartLink 4020 overview
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SmartLink 4020 Getting Started Guide
1 • General information
SmartLink 4020 overview
The SmartLink VoIP SoHo Router (see figure 1) provides transparent connectivity for analog phones and faxes
to the world of Internet voice. Connecting to any analog phone, fax or PBX, the SmartLink product is an
effective and flexible solution for small offices and telecommuters to access Internet-based telephone services
and corporate intranet systems across established LAN and Internet connections like xDSL and cable modems.
Figure 1. SmartLink 4020
The SmartLink Model 4021 provides two RJ-45 Ethernet ports and one FXS (RJ-11) analog phone port. The
SmartLink Model 4022 provides two RJ-45 Ethernet ports and two FXS (RJ-11) analog phone ports. Front
panel LEDs quickly show at-a-glance the status of the system, LAN, WAN, and phone ports.
A full suite of IP features (DHCP, NAT/PAT, NTP and VPN) are available to LAN devices attached down-
stream. VLAN tagging and prioritization enables voice traffic to be handled before data traffic. Support for
PPPoE and IPSEC tunneling simplifies extending corporate intranet services to remote teleworkers.
The web interface offers two levels of configuration access for the network operator and end user. The friendly
web interface and product labeling (Phone, LAN, WAN etc.) to help ensure a trouble-free installation for the
end user. Configuration and firmware can be downloaded from a TFTP server or HTTP server.
