Cisco SPA504G


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Cisco SPA500 Series IP Phones - 4 Line IP Phone With Display PoE and PC Port
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For business or home office use

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. With hundreds of features and configurable service parameters, the Cisco SPA504G addresses the requirements of traditional business users while building on the advantages of IP telephony. Features such as easy station moves and shared line appearances (across local and geographically dispersed locations) are just some of the many advantages of the SPA504G. The Cisco SPA504G 4-Line IP phone also supports productivity-enhancing features such as VoiceView Express and Cisco XML applications when used with the Cisco Unified Communications 500 Series in SPCP mode.

Technical Information

  • Total Number of Phone Lines: 4
  • IP Phone Technology: VoIP
  • Voice Codec:
    • G.711a
    • G.711u
    • G.726
    • G.729a
    • G.722
    • G.723.1

General Information

  • Product Type: IP Phone
  • Product Series: 500
  • Brand Name: Cisco
  • Manufacturer: Cisco Systems, Inc
  • Product Model: SPA 504G
  • Product Name: SPA 504G IP Phone


  • Number of Network (RJ-45) Ports: 2
  • Network (RJ-45): Yes
  • Headset Port: Yes


  • Package Contents:
    • SPA504G IP Phone
    • Stand
    • Handset Cord
    • RJ45 Ethernet Cable
    • Quick Installation Guide
    • SPA504G IP Phone
    • Stand
    • Handset Cord
    • RJ45 Ethernet Cable
    • Quick Installation Guide

Display & Graphics

  • Backlight: Yes
  • Display Color: Monochrome
  • Screen Type: LCD
  • Screen Resolution: 128 x 64

Power Description

  • Input Voltage:
    • 110 V AC
    • 220 V AC


  • Buttons & Keys Type: Hold Button

Management & Protocols

  • Communication Protocols: SIP v2


  • Limited Warranty: 1 Year

Full specifications (PDF)


Customer Review Summary

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The Cisco SPA504G is also known as CSC-SPA504G .