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Cisco UC520-48UUC500 48-User VoIP Gateway 8-Port PoE Business Phone System Wty

Excellent Grade · Fully tested · No visible marks
SKU: R-6182-EXC
4.76
★★★★★
710 reviews
12mo
Warranty
30day
Free returns
40+
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Sale price $299.00 Regular price $379.00

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If your item experiences a technical issue, we've got you covered—we'll either repair it or replace it for you!

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Frequently asked questions

What does the warranty cover?

Our warranty covers all hardware faults, but please note it doesn’t cover accidental damage or software issues. However, we’re here to help with technical support for those matters!

What is a refurbished device?

A refurbished device is a pre-owned item that has been restored to meet high-quality standards. At Reboot IT, we adhere to strict quality guidelines, ensuring that our refurbished products are not the same as used or secondhand items. We meticulously clean, test, and assess each device, replacing worn parts with high-quality components.

Unlike used items, which lack guarantees and rely solely on the seller's word regarding condition, refurbished devices come with assurance of quality and reliability.

What payment options are available?

We offer a variety of payment options to make your shopping experience as convenient as possible! You can pay using all major credit cards, Apple Pay, Google Pay, Shop Pay, Afterpay, Zip Pay, and PayPal. If you prefer, we also accept bank deposits and even cash for in-store purchases!

At a Glance

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We ensure secure processing of your payment information and do not retain or have access to your credit card details.

Description

Cisco UC520-48U — 48-User Unified Communications Phone System

The Cisco UC520-48U is an all-in-one small-business phone system supporting up to 48 users, combining an IP PBX, voicemail, auto-attendant, an 8-port PoE switch, and integrated routing, firewall and analogue connectivity in a single unit. A cost-effective platform for maintaining or building a Cisco-based voice network, backed by a 12-month Reboot IT warranty.

  • Up to 48 Users: All-in-one Unified Communications 500 Series platform designed for small-to-medium business voice, scaling to 48 IP phone users.
  • Built-In IP PBX: Cisco Communications Manager Express (CME) provides call processing, extensions, hunt groups and call routing without a separate server.
  • Voicemail & Auto-Attendant: Integrated Cisco Unity Express delivers voicemail and an automated attendant to route callers to the right extension.
  • 8-Port PoE Switch: Powers and connects Cisco IP phones directly — no separate injectors — with a built-in managed switch.
  • PSTN & Analogue Ports: FXO ports connect to traditional phone lines and FXS ports support analogue handsets, fax machines and door phones.
  • Integrated Router, Firewall & VPN: Combines data networking and security in the same chassis, simplifying a small-office deployment.

Performance in Use

The UC520-48U was Cisco's flagship "communications-in-a-box" for small business — a single unit that replaces a separate PBX, voicemail server, PoE switch and router. For a business already running Cisco IP phones, it delivers extensions, voicemail, auto-attendant call handling and PSTN trunking out of one appliance, keeping the voice network consolidated and easy to manage through Cisco Configuration Assistant or the CLI.

The built-in 8-port PoE switch powers Cisco 7900-series and SPA IP phones directly, while FXO ports connect to existing analogue phone lines and FXS ports handle fax machines and analogue handsets. Integrated routing, firewall and VPN mean a small office can run voice and data from the same box.

Please note: the Cisco UC500 series is end-of-life and end-of-sale, and is no longer supported or updated by Cisco. It remains a practical choice for maintaining an existing UC500 deployment, sourcing a spare/replacement unit, or for lab, training and CCNA/CCNP Voice study. It is not suited to new greenfield deployments where a current, supported platform is required.

Technical Specifications

Specification Details
Model Cisco UC520-48U (Unified Communications 500 Series)
User Capacity Up to 48 users
Call Processing Cisco Communications Manager Express (CME)
Voicemail Cisco Unity Express — voicemail + auto-attendant
PoE Switch Integrated 8-port Power-over-Ethernet switch
Voice Ports FXO (PSTN trunk) + FXS (analogue phone/fax)
Networking Integrated router, firewall and VPN
Compatible Phones Cisco 7900-series & SPA IP phones
Lifecycle Status Cisco end-of-life / end-of-support (legacy)
Warranty 12 months (Reboot IT)

Is It Right for You?

✓ Best For:
• Maintaining an existing Cisco UC500 phone system
• A spare / replacement unit for an installed base
• Small offices already standardised on Cisco IP phones
• Lab, training and CCNA/CCNP Voice study
✗ Not For:
• New greenfield deployments needing current support
• Businesses wanting cloud/hosted VoIP
• Sites requiring ongoing Cisco software updates
• More than 48 users

Condition Grades

Grade Cosmetic Condition Functional Testing
A — Excellent Minimal rack marks; clean chassis and ports Powers on; ports and PoE verified
B — Good Light rack wear, minor surface marks Powers on; ports and PoE verified

Frequently Asked Questions

How many users does it support?

The UC520-48U supports up to 48 IP phone users, with integrated call processing, voicemail and an auto-attendant.

Is it still supported by Cisco?

No — the Cisco UC500 series is end-of-life and end-of-support. It's ideal for maintaining an existing UC500 system, as a spare unit, or for lab and study use, but not for new deployments that need current Cisco support.

Does it power IP phones directly?

Yes — it has an integrated 8-port PoE switch that powers and connects Cisco 7900-series and SPA IP phones without separate power injectors.

Can it connect to traditional phone lines?

Yes — FXO ports connect to PSTN/analogue phone lines, and FXS ports support analogue handsets and fax machines.

Are IP phones included?

No — this listing is for the UC520-48U gateway unit only. Cisco IP phones are sold separately.

What's the difference between Excellent and Good grade?

Both power on with ports and PoE verified. Excellent units have minimal marks; Good units may show light rack wear or minor surface marks.

What are the shipping options?

Shipping costs apply based on size and destination — rates are calculated at checkout.

Warranty & After-Sales Support

Every Cisco UC520-48U sold by Reboot IT includes a 12-month warranty covering hardware defects. Each unit is tested — power, ports and PoE verified — before dispatch.

Reboot IT has been Australia's trusted refurbished IT and networking specialist since 2001. Melbourne-based support at reboot-it.com.au.

Specifications

  • Model
    UC520-48U
  • RAM
    None

What's in the box

  • Cisco - UC520-48U
  • Tax invoice

Why the UC520-48U?

An all-in-one Cisco phone system for up to 48 users — IP PBX, voicemail, PoE switching and PSTN connectivity in a single appliance. Ideal for maintaining or expanding an existing Cisco UC500 deployment.

Cisco UC520-48U Refurbished VoIP Gateway - Front View

48-User Phone System

Complete unified communications for up to 48 users, with call processing, voicemail and an auto-attendant built into a single appliance.

PSTN & Analogue Ready

FXO ports connect to traditional phone lines while FXS ports support analogue handsets and fax machines.

8-Port PoE Switch

Powers and connects Cisco IP phones directly through the built-in Power-over-Ethernet switch — no separate injectors required.

12-Month Warranty

Tested and graded by Reboot IT and backed by a 12-month warranty — a cost-effective spare or replacement for existing Cisco UC500 systems.

48-User Phone System

Complete unified communications for up to 48 users, with call processing, voicemail and an auto-attendant built into a single appliance.

PSTN & Analogue Ready

FXO ports connect to traditional phone lines while FXS ports support analogue handsets and fax machines.

Cisco UC520-48U Refurbished VoIP Gateway - Front View

8-Port PoE Switch

Powers and connects Cisco IP phones directly through the built-in Power-over-Ethernet switch — no separate injectors required.

12-Month Warranty

Tested and graded by Reboot IT and backed by a 12-month warranty — a cost-effective spare or replacement for existing Cisco UC500 systems.

Still undecided? Ask our experts.

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