  MultiTech Voice Over IP Gateways / Fax Over IP Gateway, includes; MVP130, MVP210-FX,
MVP410-FX, and the MVP810-FX.
 The MultiVOIP® gateway provides toll-free voice and fax communications over the Internet or Intranet. By integrating voice and fax into an existing data network, you can realize substantial savings on inter-office long distance toll charges. The MultiVOIP gateway is available in analog or digital models ranging from one to 60 ports. All MultiVOIP gateways connect directly to phones, fax machines, key systems, PSTN lines or a PBX to provide real-time, toll-quality voice connections to any office on a VOIP network. Its flexible architecture and robust feature set meet the demands of a broad range of IP telephony applications.
2, 4, or 8 ports for communication over an existing IP network or the Internet
Ethernet connectivity and full IP compatibility with existing routers and WAN infrastructure
Supports FXS/FXO on each channel for direct analog connection to phones, key telephones, fax machines, PBX extensions, PSTN lines or PBX trunks
Supports SIP for sending voice over the Internet
Voice compression to 5.3K per call with support for multiple algorithms, including ITU G.723 and G.729
VAD and CNG support
QoS via DiffServ or 802.1p
PSTN failover automatically routes calls over the PSTN network if the IP network is down
Supports SIP supplementary services including call forward, call transfer, and call hold
T.38 real-time fax relay for interoperability among other VOIP equipment
Configuration and management using a web browser or Windows
Two-year warranty
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