The Best cisco 504g phones of 2021 – Top 10 and Rankings

If you’re looking for cisco 504g phones but don’t know which one is the best, we recommend the first out of 10 cisco 504g phones in this article. Check out how we decide after hours of researching and comparing dozens of items on the market.

Rank No. #1
Cisco SPA504G 4-Line IP Phone with 2-Port Switch, PoE and LCD Display, Silver, Grey (Renewed)
  • This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
  • Multiple VoIP protocol support, integrated Ethernet switch
  • 2 x Ethernet 10Base-T/100Base-TX
  • 128 x 64 monochrome LCD display with backlight
  • Call Services: Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold
Rank No. #2
Cisco SPA504G 4 line IP Phone without power supply with 2-Port Switch, PoE and LCD Display (Renewed)
  • Cisco Small Business SPA 504G voip phone SIP, SIP v2, SPCP multiline silver, dark gray for Small Business Pro Unified Communications 320 with 4 FXO.
  • Part of the Cisco Small Business Series, the SIP-based Cisco SPA 504G 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 SPA 504G 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 SPA 504G.
  • The Cisco IP Phone uses standard encryption protocols to perform highly secure remote provisioning and unobtrusive in-service software upgrades.
  • Remote provisioning tools include detailed performance measurement and troubleshooting features, enabling network providers to deliver high-quality support to their subscribers.
Rank No. #3
Cisco SPA 509G 12-Line IP Phone
  • Full-featured 12-line business-class IP phone supporting Power over Ethernet (PoE)
  • Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX)
  • Cisco HD Voice 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 both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) with the Cisco Unified Communications 500 Series for Small Business
Rank No. #4
Cisco SPA 303 3-Line IP Phone (Renewed)
  • 3-Line Business Class IP phone
  • Connects directly to an Internet telephone service provider or to an IP PBX
  • Dual switched Ethernet ports, speakerphone, caller ID, call hold and conferencing
  • Supports SIP and SPCP
  • Comes standard with AC Power Supply as the SPA303 is not PoE Compatible.
Rank No. #5
Cisco SPA 508G 8-Line IP Phone (Renewed)
  • This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
  • 8-Line IP Phone. Comes standard ready for PoE. Optional AC Power Supply sold separately.
  • LCD display- monochrome backlit with 128 x 64 pixel display resolution
  • Multiline support, multiple VoIP protocol support, integrated Ethernet switch, Power over Ethernet (PoE) support
  • Network Ports Quantity: 2 x Ethernet 10Base-T/100Base-TX
SaleRank No. #6
Cisco SPA 508G 8-Line IP Phone
  • Poe & Pc port
  • 8 line IP phone
SaleRank No. #7
Cisco Remanufactured SPA504G 4-Line IP Phone, Cisco Small Business Product 1-Year Limited Hardware Warranty (SPA504G-RF)
  • CISCO REMANUFACTURED: Cisco Refresh is the Cisco certified, pre-owned equipment business; Refresh (-RF) carries the same warranty and access to software updates as with new products; To guarantee genuine Cisco product on Amazon product must be Ship From, sold By Amazon;
  • POWER OVER ETHERNET: Full-featured 4-line business-class IP phone supporting Power over Ethernet (PoE)
  • CONNECTIVITY: Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX)
  • FEATURE: Supports up to two Cisco SPA500S Expansion Module, adding up to 64 additional buttons
  • EASY TO USE: Easy installation and secure remote provisioning, with menu-based and web-based configuration
SaleRank No. #8
Cisco IP Phone CP-7821-K9 Charcoal,Black
  • Two-lines deliver more efficient call handling.
  • High-resolution graphical grayscale display makes viewing easier.
  • Dedicated fixed keys (Includes messaging, directory, speaker, and a two-way navigation button) ease communications for increased productivity.
  • Built-in speakerphone supports hands-free communications.
  • Wideband audio enhances clarity with the handset, speaker, or a headset.
Rank No. #9
Cisco Unified IP Phone, Charcoal (CP-8961-C-K9=) (Renewed) (Power Supply Not Included)
  • This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
  • Highly usable and intuitive arrangement of lines, features and calls. Transfer, Conference and Hold appear on hard keys to reduce the number of presented softkeys to a maximum of 4 per call state
  • Internal 2-port Cisco Ethernet switch allows for a direct connection to a 10/100/1000 BASE-T Ethernet network through an RJ-45 interface with single LAN connectivity for both the phone and a collocated PC. System administrator can designate separate VLANs (802.1Q) for the PC and phone, providing improved security and reliability of voice and data traffic
  • 2 USB ports accelerate the usability of call handling and applications by enabling wired and wireless headsets
  • SIP interoperation with the call control and partner applications enables a rich unified communications solution
Rank No. #10
Cisco IP Phone 8851 with Multiplatform Firmware - Charcoal (CP-8851-3PCC-K9) (Power Supply Not Included)
  • This multiplatform phone firmware enables the 8800 Series to work with approved third-party call control systems
  • Phones ordered as multiplatform phones do not work with Cisco call control (CUCM)
  • Albanian, Afro-Asiatic Languages, Afro-Asiatic Languages (Playback Languages)
  • Albanian, Afro-Asiatic Languages, Afro-Asiatic Languages (Subtitles)
  • Ainu (Publication Language)

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  1. Brand Value: Every brand of cisco 504g phones has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features:What bells and whistles matter for an cisco 504g phones?
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  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their cisco 504g phones.
  7. Product Quality: You don’t always get what you pay for with an cisco 504g phones, sometimes less, and sometimes more.
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