IP PHONE CISCO SPA504G GRADE A REFURBISHED

Screen : Pixel-based display: 128 x 64 monochrome LCD graphical display with backlight Lines : 4 Networking : VLAN-capable dual switched Ethernet ports, 802.3af PoE support Voice Codecs : G.711, G.726, G.722 and G.729AB audio compression Network Features : Cisco Discovery Protocol, IEEE 802.1p/Q Signaling protocol support : SIP version 2, SPCP with the Cisco Unified Communications 500 Series Features :Dedicated illuminated buttons for Audio mute, Hedset on/off, Speakerphone. Voicemail message waiting indicator (VMWI) light. Dedicated hold button, 4-way rocking directional knob for menu navigation Power Supply : 802.3af-compliant PoE, Optional 5 VDC universal (100-240V) switching Dimensions : 21.4 x 21.2 x 44 cm Weight : 0.9 kg Screen Pixel-based display: 128 x 64 monochrome LCD graphical display with backlight Lines 4 Networking VLAN-capable dual switched Ethernet ports, 802.3af PoE support Voice Codecs G.711, G.726, G.722 and G.729AB audio compression Network Features Cisco Discovery Protocol, IEEE 802.1p/Q Signaling protocol support SIP version 2, SPCP with the Cisco Unified Communications 500 Series Features Dedicated illuminated buttons for Audio mute, Hedset on/off, Speakerphone. Voicemail message waiting indicator (VMWI) light. Dedicated hold button, 4-way rocking directional knob for menu navigation Power Supply 802.3af-compliant PoE, Optional 5 VDC universal (100-240V) switching Dimensions 21.4 x 21.2 x 44 cm Weight 0.9 kgScreen : Pixel-based display: 128 x 64 monochrome LCD graphical display with backlight Lines : 4 Networking : VLAN-capable dual switched Ethernet ports, 802.3af PoE support Voice Codecs : G.711, G.726, G.722 and G.729AB audio compression Network Features : Cisco Discovery Protocol, IEEE 802.1p/Q Signaling protocol support : SIP version 2, SPCP with the Cisco Unified Communications 500 Series Features :Dedicated illuminated buttons for Audio mute, Hedset on/off, Speakerphone. Voicemail message waiting indicator (VMWI) light. Dedicated hold button, 4-way rocking directional knob for menu navigation Power Supply : 802.3af-compliant PoE, Optional 5 VDC universal (100-240V) switching Dimensions : 21.4 x 21.2 x 44 cm Weight : 0.9 kg