Used, but in very good condition. Model IP Office 500 Power Supply 100-240V AC, 50/60Hz, 81-115VA, 2.5A maximum Security * E911 * PIN-restricted terminals * CLI call-back for Remote Access * Integral Firewall * Network Address Translation (NAT) * PAP/CHAP authentication protocols * Time profiles * VPN support * System Management Audit Trail Networking * Q.Sig Networking over T1 and IP * Uniform Dial Plan * Preferred Edition Networked Messaging * Proactive remote monitoring via SNMP * VPN support - IPSec or L2TP * Multi-site option (up to 32 sites) features such as Busy Lamp Field, Paging, Desk-to-desk calling, Calling/connected name and number, Hold and Transfer, Centralized Voicemail, Internal Directory, Absent Text Message, Remote Hot-Desking and Distributed Hunt Groups. Data Functionality * Bandwidth on demand * DHCP server * Integral data router - RIP-2 * Internet Access * LAN-to-LAN routing * Multi-Link PPP * Remote Access Server (RAS)