Matrix ComSec MAT-SETU-VFX404 4-VoIP 4-FXS Gateway.VoIP-FXO-FXS Gateway with 4 VoIP, 4 FXS and 1 FXO (Pass-Through) Ports.Cost-effective inter-branch office communication.Centralized management and monitoring.Remote access to call management features of main office IP-PBX system.Peer-to-Peer and proxy calling between distant locations.Maintain vital business continuity in event of IP network failure.Call detail records of 2000 calls.Caller ID presentation on analog station.Emergency number dialing.Fax over IP (T.38 and Pass-Through).Hotline extension setting.Make and receive calls using analog terminals over the IP network