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Quick Overview


The Cisco SPA504G is a four-line VoIP phone that will undoubtedly supercharge your existing operation. With an LCD display and a slew of features, this phone packs a serious punch.

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Cisco SPA504G Information:


The sleek and stylish Cisco SPA504G is an impressive four-line VoIP phone that comes fully loaded with a huge backlit LCD, 2 switched 10/100 ports, and Cisco HD Voice. Supporting either SIP or SPCP, the Cisco SPA504G is the perfect IP phone for hosted VoIP or premise based IP PBX systems. 


The industrious Cisco SPA504G works with LDAPv3 Corporate Directory Search, Cisco XML-based Corporate Directory and boasts a customizable logo and screensaver. SIP 3rd party call control for server based applications and Cisco XML API support for advanced applications is also available. The Cisco SPA504G supports for the standard SIP2.0 protocol, as well as Cisco's proprietary SPCP (Smart Phone Control Protocol), a derivative of Cisco's SCCP (Skinny) call control protocol which is used on the Cisco UC500 platform.




  • Four-Line VoIP Phone
  • Dual switched Ethernet ports
  • IEEE 802.3af Power Over Ethernet
  • SIP or SPCP protocol
  • G.729 and G.722 Wideband Audio Support
  • Menu driven user interface
  • Web based GUI with remote provisioning
  • IP dialing support
  • Hi-Res LCD Display
  • 2.5mm stereo headset connector
  • AUX port (SPA932 or SPA500S attendant console is supported)
  • High quality audio handset
  • Full duplex hands free speakerphone
  • Hearing aid compatability (HAC)
  • Support calls between TTY's
  • Works well with GN Netcom, Jabra and Plantronics wired headsets
  • Optional PA100 Power Adapter and MB100 Wall Mount Adapter


Mfg. Part Number: SPA504G
UPC Code: 882658270024


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