WIS-L5818S is a high-power complete base...
Source here https://mobilespecs.net/ - Summary: Type: Wi-Fi ADSL access point; Support ADSL2+: yes; Wireless standard: 802.11g; Max. speed of the wireless connection: 54 Mbps; Protection of information: WEP, WPA; Transmitter power: 18 dBM; Router: yes; FireWall: yes; NAT: yes; SPI: yes; DHCP server: yes; Support for Dynamic DNS: yes; Demilitarized zone (DMZ): yes; Dynamic routing protocols: RIP v1, RIP v2; Support for VPN pass through: yes; The number of external antennas: 1; External antenna type: removable; Web-interface: yes; Built-in VoIP adapter: yes; The number of FXS ports: 2; Flash memory: yes; ...