Nortel BCM Enterprise Edge 1000, it has BCM rel 4.0. Support H.323 and SIP It has following keycodes: BCM 4.0 Upgrade: 103 ICC: Active ICC Reporting: Active ICC Skillset: 50 BCM Pro. Call Center Agents: 28 BCM IP Telephony Client: 1 BCM LAN CTE Seats: 20 BCM Voice Messaging Mailboxes: 32 Warranty: 6 months. Condition: Refurbished