Technical diagnosis
We check the motherboard, processor, memory and the overall stability of the equipment.
Cisco SPA504G IP Phone, 4 Lines, Monochrome LCD, PoE
Enjoy an IP phone equipped with 4 lines, wideband audio, and dual 10/100 PoE Ethernet ports, ideal for clear and efficient daily business communications.
48,40€
Receive it on Tuesday, October 27 · Free shipping
You can keep the device’s default configuration or select optional upgrades. The total price updates automatically.
Advice from the Zoca technical team
Refurbished-device specialists
A reliable 4-line IP phone featuring SIP and SPCP support, wideband audio, and dual 10/100 Ethernet ports with PoE, well suited for desktop office telephony.
Recommended for
- Business desktop environments requiring 4 lines and multi-call handling
- Offices equipped with Power over Ethernet (PoE) infrastructure
- Telephony setups utilizing SIP or SPCP communication protocols
Checked, tested and ready to use
Each device is individually checked with professional diagnostic tools, cleaned and subjected to a final control before being put up for sale. You receive a functional product, with its cosmetic condition identified and securely packaged.
Screen and controls
We check the screen, keyboard, touchpad, camera, microphone, speakers and buttons, where applicable.
Ports and connectivity
We test the ports, video and audio outputs, network, Wi-Fi, Bluetooth and available connections.
Storage and battery
We analyze the condition of the storage drives and check the operation and useful capacity of the battery.
Cleaning and cosmetic condition
We perform internal and external cleaning, classify the cosmetic condition and photograph the batch after checking it.
Software prepared
We update the firmware when applicable and prepare the operating system with an official license when included.
Final quality control
We repeat the essential checks and validate that the equipment is stable and ready for sale.
Secure packaging
We protect the equipment for transport and include the accessories indicated in the specs so you receive it ready to use.
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- Official independent coverage up to €2,500
- Protection included at no additional cost
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Up to €2,500
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View reviewsFrequently asked questions
How many lines does the Cisco SPA504G support?
It supports up to 4 lines and can handle up to 8 simultaneous active calls.
Does this phone support Power over Ethernet (PoE)?
Yes, it supports PoE via its dual 10/100 Ethernet switch ports.
Which VoIP protocols are compatible with this model?
It is compatible with both SIP and SPCP protocols.
Does it include a headset connection?
Yes, it includes a dedicated 2.5 mm headset jack.
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Product description
Voice Clarity and Audio Features
The Cisco SPA504G delivers high-definition voice performance with support for wideband audio codecs such as G.722, along with standard codecs including G.711, G.726, and G.729ab. Its full-duplex speakerphone ensures clear hands-free conversations for meetings and multitasking.
- Full-duplex hands-free speakerphone
- Wideband audio codec support (G.722)
- Dedicated 2.5 mm headset port
Call Management and Display
Equipped with a backlit monochrome LCD, this 4-line terminal provides clear visibility for caller ID, message waiting alerts, and menu navigation. It accommodates up to 8 simultaneous calls, making it practical for busy office workstations.
- Backlit monochrome LCD screen
- Support for up to 8 active call appearances
- 3-way conferencing, call transfer, and Do Not Disturb
Network and Connectivity
The phone includes an integrated 2-port 10/100 Ethernet switch with Power over Ethernet (PoE) capability, allowing simplified cabling by powering the device directly through the network cable.
- Dual 10/100 Ethernet ports with PoE support
- Compatible with SIP and SPCP protocols
- Optional 5 V DC external power input
This device includes a 1-year warranty.
To request assistance, contact the Zoca team with your order reference.
You can request a return within the 15 days stated in the purchase terms.
The device must be returned by following the process provided by Zoca.
You can pay with credit/debit card, PayPal, Apple Pay, Google Pay, cash on delivery, or bank transfer.
Bank card via Redsys
Visa y Mastercard
PayPal
Apple Pay
Google Pay
Cash on delivery
Bank transfer
Card payments are securely processed via Redsys. Available options and conditions are shown before confirming your order.
Free shipping.
Preparation and delivery times are confirmed on the product page and at checkout according to the destination.
Inspected and tested
Every device undergoes functional checks before it is offered for sale.
100% functional
The operation of the device is guaranteed.
Prepared in our facility
We clean, grade and prepare it in-house before sale.
Visible condition before purchase
Check the to see its cosmetic condition and possible signs of use.
Recycled packaging
You will receive it protected in our Hardware Refurbished packaging, made from recycled cardboard.
Warranty included
This device includes a 1-year warranty.