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Cisco SPA504G 4-Line IP Phone

Part of the Cisco Small Business Pro Series, the SIP- based Cisco SPA504G 4-Line IP Phone has been tested to ensure comprehensive interoperability with equipment from voice over IP (VoIP) infrastructure leaders, enabling service providers to quickly roll out competitive, feature-rich services to their customers.


  • Pixel based 128 x 64 monochrome LCD display
  • 4 voice lines
  • 4 independent SIP registrations
  • Supports both SIP and SPCP protocol
  • 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 and full-duplex speakerphone
  • Integrated 2.5 mm headset jack
  • 2 Ethernet LAN ports with integrated switch (100BASE-T)
  • Can add up to two Cisco SPA500S Expansion Modules for 64 additional buttons (see accessories below)
  • Powered via 802.3af PoE or 5V DC power supply (sold separately - see below)

Compatibility & Requirements

  • SIP compatible for use with open source IP PBX platforms and hosted telephony solutions
  • SPCP compatible for use with Cisco Unified Communications 500 Series for Small Business
  • Manufacturer: Cisco
  • Part #: SPA504G

Starting at: $67.99

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