The MultiVOIP AV survivable H.323 gateway for Avaya Communication Manager environments is ideal for small branch offices (1-15 phones/employees) of large corporations. It functions as the alternate gatekeeper for IP phones used at the remote offices and renders local office survivability, in the case of a LAN or WAN failure, by providing local, reliable PSTN trunking. The MultiVOIP AV gateway also provides local PSTN access for emergency calls, such as 911, as well as normal inbound/outbound local calling. In addition, the gateway functions as an ATA adapter, adapting analog phones and fax machines to IP environments. For more information visit the Avaya extranet. Family Features 1, 2, 4, or 8 analog ports for communication over an existing IP network or the Internet Supports H.323 for sending voice over the Internet Programmable FXS/FXO/DID connectors on each channel for direct analog connection to phones, key telephones, PBX extensions, PSTN lines or PBX trunks Provides local office survivability in the event of a LAN/WAN failure Distinctive survivable dial-tone PSTN trunking bridges the PSTN to the IP network for emergency calls as well as normal inbound/outbound calling Multi-port ATA functionality for analog phones and fax machines Emergency transfer (power-out fail-over) Ethernet connectivity and full IP compatibility with existing routers and WAN infrastructure Voice compression to 5.3K per call with support for multiple algorithms, including ITU G.723 and G.729 QoS via DiffServ T.38 real-time fax relay for interoperability among other VOIP equipment Adaptive echo cancellation, forward error correction and dynamic jitter buffers Supports message waiting light, stutter dial tone, and Caller ID Includes modem for Avaya installation and maintenance (MVP210-AV, MVP410-AV and MVP810-AV models) Supports Avaya 4610SW, 4620SW, 4602, 4606, 4612, 4620, 4624, 9620 and 9630 model IP phones Configuration and management using a web browser or Windows One-year warranty