Cisco SPA504G Features

• Pixel based 128 x 64 monochrome LCD display
• 4 voice lines and 4 independent SIP registrations
• 4 soft key buttons and 4-way navigation cluster
• Supports wideband audio
• Fixed features include mute, hold, headset, settings, and volume control
• Voicemail retrieval button and message waiting light
• Built-in high quality microphone, full-duplex speakerphone, integrated 2.5 mm headset jack
• 2 Ethernet LAN ports with integrated switch (100BASE-T)
• Can add up to 2 Cisco SPA500S or Cisco SPA500DS attendant consoles
• Powered via 802.3af Power over Ethernet, optional PoE injector, or optional 5V DC power supply (sold separately; see drop down option above)