HP 1820-48G Switch.Voice codecs: G.711a, G.711u, G.729a, G.729ab.2 Layer Supported.48 Ports.Call Services: Voice Mail, Call Waiting, Call Forwarding, Call Transfer, Call Hold.Body Color: Charcoal.Comes with 1 year warranty.4 x Expansion Slots.Comes in charcoal gray color.Product Type: VoIP phone.1U High.Voice Mail Capability: Yes.Network Ports Qty: 1 x Ethernet 10Base-T/100Base-TX.10/100/1000Base-T, 1000Base-X.4 x SFP Slots.Dialler type: Keypad, Dialler location: Base.Network protocols: Cisco Discovery Protocol (CDP), VoIP protocols: SCCP.Manageable.Rack-mountable, Desktop, Under Table, Wall MountableLifetime Limited Warranty.Speakerphone: Yes ( digital duplex ).Memory: 32MB RAM, 8MB flash memory
