Avaya 9608G Features3.2" x 2.2" monochrome display3 pages of 8 buttons with dual LEDs (24 programmable keys), 4 softkeys, 4-way navigation clusterFixed features include phone, messages, contacts, history, home, headset, speaker, volume, muteWideband audioBuilt-in full duplex speakerphone and built-in headset interfaceDual message waiting indicatorsBuilt-in two port Gigabit (10/100/1000 Mbps) switch for connection to LAN and collocated PCSupports up to three Avaya BM12 button modulesCompatibilityCompatible with IP Office 9.0 or higherH.323 version supported by Avaya Communication Manager 3.1.4 or laterSIP version supported by Avaya Communication Manager 6.0 with Avaya Aura Session Manager 6.0 or Avaya Midsize Business Template 5.2.1The Avaya 9608 can be powered via 802.3af PoE (Class 1) or local PoE injector (sold separately; see drop down option above)