4/8 port Dual FXO/FXS Interface! VS444/VS888 have 4/8 port Dual PSTN/FXS interface to connect between PBX and PSTN!
WEB CALL (Option) Easily click web call button of your website that hyperlink to web call system of G300E series for making a free phone call contact.
Life line support! (VS444/VS888) Automatic reroute the call via PSTN when VoIP failure with warning sound or power off bypass.
H.323 & SIP simultaneously support! Deploy into any multimedia, interactive, or softswitch network with the leading call and session signaling protocol
Register up to 4 SIP or H.323 accounts mixable simultaneously! Flexible registration for different VoIP Route plan
Bandwidth Control user can manage the limitation of network bandwidth and prioritize VoIP packet to pass through
Firewall, NAT, DHCP, PPPoE Connect to any broadband or access provider, serve the whole network, and secure your data. User configurable IP services ensure every host is connected to the LAN.
Auto-Provision-Server Support! Easy to remote configure/Upgrade via Auto Provision Server.d session signaling protocol