Cisco SPA504G 4 Lines IP Phone
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Cisco SPA504G SPA 504G VOIP Phone 4 Lines Charcoal IP Refurbished

Availability: In Stock
Part Number#: SPA504G
List Price was: $750.00
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Short Description:
SPA504G Small Business 4 Line Charcoal IP Display Speakerphone, Voice over Internet Protocol (VoIP) IP Phone | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
Product Overview of the Cisco SPA504G VOIP Phone

The Cisco SPA504G Small Business 4 Line Charcoal IP Display Speakerphone is a versatile and powerful communication tool designed to meet the needs of small businesses. The Cisco SPA504G is a small business-oriented IP phone designed for organizations that require a reliable and cost-effective voice communication solution. It supports Voice over Internet Protocol-VoIP technology, which allows voice calls to be transmitted over the Internet, offering a more efficient and affordable alternative to traditional telephone systems.

Key Features of the Cisco SPA504G IP Phone

Let's begin by discussing the essential features of the Cisco SPA504G IP phone that make it a valuable asset for small businesses:

4-Line Support

The Cisco SPA504G is equipped with four lines, which means you can have multiple calls active at the same time. This feature is particularly useful in a small business environment where employees may need to manage multiple calls simultaneously. The SPA504G supports up to four lines, allowing users to handle multiple calls simultaneously. This is especially useful for businesses that receive a high volume of incoming calls. With four lines at your disposal, you can easily manage and prioritize calls without the need for multiple phone devices.

Power over Ethernet Support

Power over Ethernet (PoE) technology allows the phone to receive power through the Ethernet cable, eliminating the need for a separate power adapter. This makes installation and setup easier and cleaner.

High-Quality Audio

This IP phone boasts high-quality audio, ensuring that your calls are clear and free from distortion. The speakerphone feature is particularly handy for conference calls and hands-free communication. Clear and high-quality audio is essential for effective communication. The Cisco SPA504G delivers on this front, ensuring that conversations are always crisp and easy to understand. This feature is particularly important for businesses that rely on phone communication for sales, customer support, and client interactions.

Large LCD Display

The Cisco SPA504G features a large LCD display that provides easy navigation and access to the phone's various features and settings. The display also shows caller ID information, call duration, and other relevant call details.

VoIP Compatibility

This IP phone is designed to work seamlessly with VoIP technology, allowing you to make calls over the internet. It is compatible with various VoIP platforms, making it versatile and suitable for different business needs.

4-Line Display for Enhanced Visibility

The 4-line LCD display is a standout feature of the Cisco SPA504G. It provides users with a clear view of caller information, call duration, and call history. This display is essential for businesses that receive a high volume of calls and need to quickly access important call details.

Hands-Free Communication with Speakerphone

The built-in speakerphone is a valuable feature for businesses that frequently engage in conference calls or require hands-free communication. This feature allows users to participate in meetings or discussions without the need for a separate speakerphone device.

Dedicated Function Keys for Efficiency

The Cisco SPA504G comes equipped with dedicated function keys for commonly used features such as call hold, call transfer, and voicemail access. This streamlines call management and enhances user efficiency. Users can quickly access these functions without navigating through complex menus, making the phone user-friendly.

Versatile VoIP Protocol Support

The phone supports a wide range of VoIP protocols, including SIP (Session Initiation Protocol) and SPCP (Smart Phone Control Protocol). This versatility ensures that the Cisco SPA504G is compatible with various VoIP service providers and platforms, allowing businesses to choose the most suitable service for their needs.

Benefits of Using the Cisco SPA504G IP Phone

Now that we've covered the key features of the Cisco SPA504G IP phone, let's explore the benefits of using this device in a small business setting:

Cost-Effective Communication

Traditional landline phone systems can be expensive to set up and maintain. In contrast, the Cisco SPA504G IP phone leverages VoIP technology to significantly reduce calling costs. By transmitting voice data over the internet, businesses can save on long-distance and international call charges. One of the primary advantages of the Cisco SPA504G is its cost-efficiency. By utilizing VoIP technology, the phone leverages your existing internet connection, reducing the need for a dedicated phone line. This can lead to substantial cost savings on your monthly phone bills. Additionally, the Power over Ethernet (PoE) support eliminates the need for a separate power supply, further reducing costs.

Enhanced Productivity

The Cisco SPA504G is designed to enhance productivity in small business environments. The clear 4-line display and dedicated function keys make it easy for users to manage calls efficiently. Users can quickly access features like call hold, transfer, and voicemail, streamlining their workflow. The built-in speakerphone also allows for hands-free communication, enabling users to multitask and participate in conference calls without interruption.

Increased Productivity

The Cisco SPA504G's 4-line support and call management features make it easier for employees to handle multiple calls efficiently. This can lead to improved productivity as calls are managed more effectively, and employees spend less time juggling phone lines.


As a small business grows, so do its communication needs. The Cisco SPA504G is a scalable solution that can be easily expanded to accommodate more phone lines and users. This flexibility makes it a reliable choice for growing businesses. Small businesses often experience growth, and the Cisco SPA504G is designed to accommodate that growth. You can easily add more phones to your network as your business expands, ensuring that your communication infrastructure remains scalable and adaptable to your needs.

PoE Support

The PoE support of the Cisco SPA504G simplifies the installation process. With PoE, you can power the phone through the Ethernet cable, eliminating the need for additional power outlets and adapters. This not only saves on installation costs but also reduces cable clutter.

Flexibility and Mobility

The Cisco SPA504G provides flexibility in terms of mobility. Since it relies on the Internet for calls, users can make and receive calls from anywhere with an Internet connection. This is particularly valuable for businesses with remote or distributed teams, as it allows employees to stay connected, whether they are in the office, at home, or on the road.

Compatibility with Various VoIP Providers

The Cisco SPA504G's support for multiple VoIP protocols ensures compatibility with a wide range of VoIP service providers and platforms. This flexibility allows small businesses to choose the VoIP provider that best suits their needs and budget.

Use Cases for Cisco SPA504G
  • Small Businesses: The SPA504G is specifically designed for small businesses with its cost-effective pricing, multi-line support, and advanced features. It's a great choice for companies looking to upgrade their communication systems.
  • Remote Work: With its compatibility and mobility features, the SPA504G is ideal for remote workers who need to stay connected with their teams and clients.
  • Retail and Hospitality: Businesses in the retail and hospitality industry can benefit from the phone's clear communication and advanced features when dealing with customers and reservations.
  • Professional Services: Law firms, consulting agencies, and other professional services can use the SPA504G to handle client calls efficiently and securely.
General Information about this Cisco SPA504G
  • Manufacturer: Cisco
  • Part Number or SKU# SPA504G
  • Product Series: 500
  • Product Model: SPA 504G
  • Product Type: VoIP Phone
Technical Information of VoIP Phone
  • Telephony Equipment: IP Phone
  • Network (RJ-45): Yes
  • Number of Network (RJ-45) Ports: 2
  • Headset Port: Yes
  • Body Color: Silver, Dark Gray
  • Body Material: Abs Plastic
Phone Features for 2 Ports Internet Protocol Phone
  • Key Expansion Module Max Qty: 2
  • Dialer Type: Keypad
  • Dialer Location: Base
  • Conference Call Capability: 3-way
  • Intercom: Yes
  • Speakerphone: Yes ( Digital Duplex )
  • Caller ID: Yes
  • Automatic Redial: Yes
  • Voice Mail Capability: Yes
  • Call Waiting: Yes
  • Call Forwarding: Yes
  • Call Transfer: Yes
  • Call Hold: Yes
  • Menu Operation: Yes
  • Function Buttons: Conference Button, Speakerphone Button, Transfer Button,
  • Headset Button, Mute Button, Hold Button, Redial Button
  • Programmable Buttons Qty: 4
  • Volume Control: Yes
  • Ringer Control: Yes
  • Indicators: Voice Message Waiting Indicator, Speakerphone Indicator, Headset
  • Firmware Upgradable: Yes
  • Additional Functions: Call Timer, Built-in Clock, Pager Call
  • Additional Features: On-hook Dialing, Music On Hold, Built-in Web Server
IP Telephony
  • Main Features: Multiline Support, Multiple Voip Protocol Support, Integrated Ethernet Switch, Power Over Ethernet (POE) Support
  • VOIP Protocols: Sip, Sip V2, Spcp
  • Voice Codecs : G.722, G.729a, G.711u, G.711a, G.726
  • Lines Supported: 4 Lines
  • Quality Of Service: Ieee 802.1q (VLAN), Differentiated Services (diffserv), Ieee 802.1p, Type Of Service (tos)
  • IP Address Assignment: Dhcp
  • Security: 256 Bit Aes
  • Network Protocols: Ip, Tcp, Tftp, Udp, Icmp, Arp, Http, Dns, Https
  • Network Ports Qty: 2 X Ethernet 10base-t/100base-tx
  • Voice Features: Comfort Noise Generation (CNG), Voice Activity Detection (VAD), HD Voice
  • Network Features: Network Address Translation (nat)
  • Phone Memory
  • Phone Directory Capacity: 100 Names & Numbers
  • Call Log Capacity: 60 Numbers
  • Display Location: Base
  • Display Resolution: 128 X 64 Pixels
  • Features: Backlit
Compatibility Information
  • SIP compatible for use with open source IP PBX platforms and hosted telephony solutions
  • SPCP compatible for use with Cisco Unified Communications 300 (UC300) and 500 (UC500) Series for Small Business

In summary, the Cisco SPA504G Small Business 4 Line Charcoal IP Display Speakerphone is a powerful and versatile communication tool designed to meet the needs of small businesses. Its support for Voice over Internet Protocol (VoIP) technology, along with its cost-effectiveness, scalability, and advanced features, makes it an excellent choice for modernizing communication infrastructure.

This in-depth guide has covered the key features, benefits, technical specifications, and use cases of the Cisco SPA504G IP phone. We've also provided a step-by-step guide for setting up the phone and offered troubleshooting tips for common issues.

The benefits of adopting this IP phone are numerous, including cost savings, improved productivity, and easy integration with existing VoIP systems. Whether your business is a small startup, a home office, a retail store, or a professional services firm, the Cisco SPA504G can help streamline your communication processes, ensuring that you can stay connected with clients and colleagues while maintaining a professional and secure environment.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Here, you can check more available conditions of your desired product SPA504G at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
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Important notes:

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Worldwide Shipping Options:

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Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

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