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Mitel 5224 IP Phone is a feature-rich multi-line IP speakerphone with full duplex handsfree operation and a 2 line x 20 character backlit display with contrast control plus 3 context-sensitive softkeys for intuitive feature access. The Mitel 5224 IP Phone features: Hearing aid compatible Desk/wall mountable Dual mode supports both SIP and MiNet protocols Dual 10/100 Mb switched Ethernet ports accommodates a collocated PC Power via PoE (802.3 af) or 24VDC power adapter (not included, sold separately) Compatible with: Mitel 3300 Integrated Communications Platform (ICP), Release 6.1 or higher Mitel SX-200 Integrated Communications Platform (ICP), Release 3.0 or higher Mitel Teleworker Solution, Release 3.2 (URI) or higher.
The phone's firmware is ver 2, 3or 4. Add $10 ea. for upgrading to 8, which is the latest we have.