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Manufacturer:Cisco

Model:SPA504G

UPC:882658270024

Warranty:1 Year

Return Period:30 days

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Cisco SPA504G



Cisco SPA504G 4 Line VoIP Phone with PoE


From your business to your home, the Cisco SPA504G is the perfect fit for your work schedule. The 504G is a 4 line phone, meaning it has the ability to support 4 calls simultaneously. The 504G is designed for power users such as sales and customer service representatives who depend on the phone throughout their workday. With the ability to support two Cisco SPA500S Expansion Modules, you can add an additional 64 line appearances, making the SPA504G a great match for receptionists and secretaries.


The SPA504G is a feature rich VoIP phone that doesn’t become overly complicated, making it very easy and intuitive to use. HD audio support allows for unsurpassed voice clarity and enhanced speaker quality when using the handset or the full-duplex speakerphone. Multiple indicator lights let users know when there is a message waiting for them, an extension is in use or if they are currently using the headset, speakerphone, or mute functions. The monochrome backlit display will help you navigate through all of the SPA504G’s features while also displaying important information such as caller ID. The SPA504G IP Phone also has dual switched Ethernet ports so you can plug a cable from the phone to the computer for access to the internet or a LAN (Local Area Network). The SPA504G also supports popular features such as call transfer, speakerphone, call conferencing, voicemail, and encryption for enhanced security and much more!


The SPA504G is an affordably priced, reliable, and stylish IP phone that provides a user friendly experience with the luxury of wideband audio. The SPA504G connects employees, offices and offers application support on the phone to enhance productivity. Whether you are working from your office or from the comfort of your own home, the Cisco SPA504G IP phone is an ideal fit for your telephony needs.

Cisco SPA504G


    These are some of the key features of the Cisco SPA504G

  • For business or home office use
  • Full-featured 4-line business-class IP phone supporting Power over Ethernet (PoE)
  • Monochrome backlit display for ease of use, aesthetics, and on-screen applications
  • Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX)
  • Dual switched Ethernet ports for connecting a computer behind the phone, reducing cabling costs
  • Wideband audio for unsurpassed voice clarity and enhanced speaker quality
  • Easy installation and highly secure remote provisioning, as well as menu-based and web-based configuration
  • Supports up to two Cisco SPA500S Expansion Module, adding up to 64 additional buttons
  • Supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) with the Cisco Unified Communications 500 Series for Small Business

Cisco SPA504G


    Telephony Features
  • Four voice lines
  • Four Independent SIP Registrations
  • Line status: active line indication, with name and number
  • Menu-driven user interface
  • Shared line appearance
  • Speakerphone
  • Call hold
  • Music on hold
  • Call waiting
  • Caller ID name and number
  • Outbound caller ID blocking
  • Call transfer: attended and blind
  • Three-way call conferencing with local mixing
  • Multiparty conferencing via external conference bridge
  • Automatic redial of last calling and last called numbers
  • On-hook dialing
  • Call pickup: selective and group
  • Call park and unpark
  • Call swap
  • Call back on busy
  • Call blocking: anonymous and selective
  • Call forwarding: unconditional, no answer, on busy
  • Hot line and warm line automatic calling
  • Call logs (60 entries each): made, answered, and missed calls
  • Redial from call logs
  • Personal directory with auto-dial (100 entries)
  • Do not disturb
  • Digits dialed with number auto-completion
  • Anonymous caller blocking
  • Uniform Resource Identifier (URI) (IP) dialing support (vanity numbers)
  • On-hook default audio configuration (speakerphone and headset)
  • Multiple ring tones with selectable ring tone per line
  • Called number with directory name matching
  • Ability to call number using name: directory matching or via caller ID
  • Subsequent incoming calls show calling name and number
  • Date and time with support for intelligent daylight savings
  • Call start time stored in call logs
  • Call timer
  • Name and identity (text) displayed at startup
  • Distinctive ringing based on calling and called number
  • 10 user-downloadable ring tones
  • Speed dialing, eight entries
  • Configurable dial/numbering plan support
  • Intercom
  • Group paging
  • Network Address Translation (NAT) Traversal, including Simple Traversal of UDP Through NATs (STUN) support
  • DNS SRV and multiple A records for proxy lookup and proxy redundancy
  • Syslog, debug, report generation, and event logging
  • Highly secure call encrypted voice communications support
  • Built-in web server for administration and configuration with multiple security levels
  • Automated remote provisioning, multiple methods; up to 256-bit encryption (HTTP, HTTPS, Trivial File Transfer Protocol [TFTP])
  • Option to require administrator password to reset unit to factory defaults

  • Hardware Features
  • Pixel-based display: 128 x 64 monochrome LCD graphical display with backlight
  • Dedicated illuminated buttons for Audio mute, headset and speakerphone
  • 4-way rocking directional knob for menu navigation
  • Voicemail message waiting indicator (VMWI) light
  • Voicemail message retrieval button
  • Dedicated hold button
  • Settings button for access to feature, setup, and configuration menus
  • Volume control rocking up/down knob controls handset, headset, speaker, ringer
  • Standard 12-button dialing pad
  • High-quality handset and cradle
  • Built-in high-quality microphone and speaker
  • Headset jack: 2.5 mm
  • LED test function
  • Two Ethernet ports with integrated Ethernet switch: 10/100BASE-T RJ-45
  • 802.3af-compliant PoE
  • Optional 5 VDC universal (100-240V) switching; power supply is ordered separately (Cisco PA100)

  • Regulatory Compliance
  • FCC (Part 15, Class B), CE Mark, A-Tick, C-Tick, Telepermit, UL, CB
    Security Features
  • Password-protected system, preset to factory default
  • Password-protected access to administrator and user-level features
  • HTTPS with factory-installed client certificate
  • HTTP digest: encrypted authentication via MD5 (RFC 1321)
  • Up to 256-bit Advanced Encryption Standard (AES) encryption
  • SIP over Transport Layer Security (TLS)
  • Secure Real-Time Transport Protocol (SRTP)

  • Documentation
  • Quick-Start Installation and Configuration Guide
  • User Guide
  • Administration Guide
  • Provisioning Guide (for service providers only)

  • Package Contents
  • Cisco SPA504G 4-Line IP phone, handset, and stand
  • Handset cord
  • RJ-45 Ethernet cable
  • Quick-Start Guide
  • CD



Cisco SPA504G