The Quadro4x-RM is the rack mountable version of the Quadro4x. Enclosed in a rugged metal 1U chassis, it can be mounted in a 19-inch or 23-inch rack. The robust enclosure incorporates a fused AC input with an on/off switch. The Quadro4x-RM is ideal for the small to medium size business locations with a higher need for IP Phone extensions. It is an IP router, SIP gateway and IP PBX all in one box. The Quadro4x is equipped with four FXS ports for connection of standard analog POTS phones or fax machines. Thirty additional IP phones can be configured as SIP extensions. In addition, there are four FXO ports for connection to the PSTN. With a built-in QoS router, LAN voice traffic can be routed to the Internet, eliminating the need for an additional IP router. The Quadro incorporates a stateful inspection firewall, NAT, DHCP client and server, and web browser configuration. In addition to the features of the 2x, the Quadro4x-RM adds USB ports for voicemail memory expansion. With the purchase of a software key (SKU-QUADRO-0710) the Quadro4x-RM can expand to support 16 more IP phone extensions, bringing the total to 50 analog and IP extensions. One additional software key (SKU-QUADRO-0710) can be purchased to add 16 more IP phone extensions, brining the total to 66 analog and IP extensions. One free Quadro Communications Manager license is included with the base system.

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