Multi-Tech Systems MVP210-SS manual Internet

MultiVOIP User Guide Overview

Capacity. MultiVOIP model MVP810SS is an eight-channel unit, the model MVP410SS is a four-channel unit, and the MVP210SS is a two- channel unit. All three of these MultiVOIP units have a 10/100Mbps Ethernet interface and a command port for configuration.

SIP Survivability. The MVP210SS, MVP410SS and MVP810SS have a special capacity that reaches beyond ordinary voip functionality: they can direct call traffic for phones connected to their channels or phones connected to channels of other SIP gateways in the network (this is basic SIP server functionality). The MVP-SS unit would normally be located at a remote branch office served by a central SIP server (PBX) at the organization’s main office. The MVP-SS is intended as a backup in case the network’s main SIP server (often a PBX) fails or loses contact with the group of gateways at the remote branch office. If the main SIP server fails, the MVP-SS allows branch office phone users to call each other and access the PSTN via POTS lines or a key telephone system.

Main Office

Central SIP Server

(Main PBX)

Router

PSTN

	Internet
		Branch Office
	Router
Ordinary	LAN
SIP
Gateway
POTS SIP Survivability		SIP Phone 1
or KTS	Server &	SIP Phone 2
	Gateway

SIP Phone 3

PSTN

Figure 1-3: SIP Survivability MultiVOIP in system

A single MVP210SS, MVP410SS or MVP810SS can provide SIP server functionality for as many as 500 other voip gateways. However, the number of phone lines that these units support (4 for the MVP410SS; 8

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