AustraIia’s trusted refurbished computers since 2001 – Extra 10% off Red Tag deals

Affordable Tech! Laptops under $200

Shop our range of cheap laptops

1 2

Selling fast!
Grab yours while you can

Logitech GSC3510Grandstream GSC3510 SIP Paging Intercom Speaker PoE+ Wi-Fi Bluetooth 3 Mic

Excellent Grade · Fully tested · No visible marks
SKU: R-5914-EXC
4.76
★★★★★
708 reviews
12mo
Warranty
30day
Free returns
40+
Tech-tested checks
✓ Fast AU shipping ✓ Pickup: Springvale VIC
Select Option
$129.00 $179.00

You save $50

or 4 interest-free payments of $32.25 with

Customize and Upgrade Your Device

  • Refurbished - 1yr Warranty - Reboot IT

    1yr Warranty

    $50.00 $75.00

Perks you get with every purchase

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

30 days to change your mind
Feel free to return your item for any reason within the first 30 days of receiving it. It's that easy!

Free express shipping
Enjoy fast, free express shipping on all small items like laptops, tablets, and smartphones!

Customer support
Rest assured, we’ll always respond to you within 1 business day!

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

Display
15in

Safe & Secure

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

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

Description

Grandstream GSC3510 — SIP Paging Intercom Speaker, PoE+, Wi-Fi, Bluetooth

The Grandstream GSC3510 is a ceiling-mount SIP paging speaker and intercom unit combining PoE+ power delivery, Wi-Fi, Bluetooth, and a 3-microphone array in a single device. Deploy on any SIP PBX to broadcast PA announcements, receive two-way intercom calls, or integrate with unified communications platforms. Backed by a 12-month Reboot IT warranty.

Key Benefits

  • SIP paging over your existing PBX: Register directly to any SIP-compatible PBX — FreePBX, 3CX, Cisco UCM, hosted SIP — without proprietary paging hardware.
  • PoE+ powered: 802.3at PoE+ delivers power over the Ethernet cable — ceiling mount with a single CAT6 run, no mains power outlet needed at the speaker location.
  • Wi-Fi built-in: 802.11 b/g/n/ac Wi-Fi provides a wireless deployment path for retrofits where Ethernet runs aren’t available.
  • 3-microphone array: Three directional microphones with noise cancellation enable clear two-way intercom conversations from anywhere in the room — not just directly below the device.
  • Bluetooth 4.2: Stream audio from Bluetooth sources (phones, PCs) or use as a Bluetooth paging output for non-SIP audio scenarios.
  • Full-duplex audio: Both parties can speak and hear simultaneously — no half-duplex push-to-talk limitations.

Performance in Use

The GSC3510 is designed for open-plan offices, warehouses, reception areas, and retail environments where PA paging and two-way intercom are needed without separate proprietary paging infrastructure. Register it as a SIP extension on your existing PBX and it appears as a standard endpoint — dial it to page, add it to a multicast paging group, or configure it as an auto-answer intercom station.

The 3-mic array means staff can respond to intercom calls from across a large room without approaching a wall-mounted handset. For larger sites, multiple GSC3510 units can be deployed in a multicast paging zone where a single PBX extension triggers all speakers simultaneously — a common configuration in manufacturing floors and logistics sites.

Technical Specifications

Specification Details
Model Grandstream GSC3510
VoIP Protocol SIP (RFC 3261) — up to 2 SIP accounts
Power 802.3at PoE+ (RJ45) or DC 12V
Wi-Fi 802.11 b/g/n/ac (2.4 GHz + 5 GHz)
Bluetooth Bluetooth 4.2
Microphones 3× built-in directional microphones with noise cancellation
Audio Full-duplex, built-in speaker, multicast paging support
PBX Compatibility Any SIP-compatible PBX (FreePBX, 3CX, Cisco UCM, hosted SIP)
Mounting Ceiling or wall mount (flush mount bracket included)
Warranty 12 months — Reboot IT

Is It Right for You?

Best For ✓ Not For ✗
Offices and warehouses needing SIP PA paging Standalone speaker use without a SIP PBX or BT/Wi-Fi source
Two-way intercom over existing VoIP infrastructure Outdoor or harsh-environment installations (indoor rated only)
Ceiling deployment powered by a single PoE+ cable High-noise industrial environments needing 100dB+ output
Multicast paging zones across multiple speakers Analogue PA systems (SIP/IP only)

Condition Grades

Grade Cosmetic Testing
A — Excellent Minimal marks, near-new appearance SIP registration, audio, and mic tested
B — Good Light wear, fully functional SIP registration, audio, and mic tested

Frequently Asked Questions

Does the GSC3510 work with any SIP PBX?

Yes — it registers as a standard SIP endpoint and is compatible with any RFC 3261-compliant PBX including FreePBX, 3CX, Cisco UCM, and most hosted SIP providers.

Does it need PoE or can it use a power adapter?

The GSC3510 supports 802.3at PoE+ via RJ45 and also a DC 12V input for non-PoE deployments. A DC power adapter is not included.

Can it page multiple speakers at once?

Yes — the GSC3510 supports SIP multicast paging, allowing a single page to trigger all speakers in a configured group simultaneously. Set multicast addresses via the web UI or PBX.

Can I stream Bluetooth audio to it?

Yes — Bluetooth 4.2 allows audio streaming from paired smartphones, laptops, or tablets — useful as a secondary playback function outside of SIP paging use.

What shipping costs apply?

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

What warranty is included?

Every Grandstream GSC3510 from Reboot IT includes a 12-month return-to-base warranty covering all hardware functions.

12-Month Warranty — Reboot IT

Every Grandstream GSC3510 sold by Reboot IT is backed by a 12-month return-to-base warranty. Our team has been testing, grading, and reselling quality IT equipment since 2001 from our Melbourne base. Shipping costs apply based on size and destination. Visit us at reboot-it.com.au.

Specifications
  • Model
    GSC3510
  • Screen Size
    15in
  • Connectivity
    PoE+, Wi-Fi, Bluetooth
  • Colour
    Black
  • Warranty
    3 Month

What's in the box
  • Grandstream GSC3510 SIP Paging Intercom Speaker

Why the GSC3510?

Experience rich stereo sound with the Logitech Z150's 6W output and convenient 3.5mm AUX connectivity, plus integrated headphone jack for private listening - all backed by our 3-month warranty.

Grandstream GSC3510 SIP Paging Intercom Speaker PoE

Clear 6W Stereo Sound

The Z150 delivers crisp 2.0 stereo audio with 6 watts of power for enhanced clarity in music, gaming, and video calls.

Built-in Headphone Jack

Switch seamlessly between speakers and private headphone listening with the convenient front-mounted headphone jack.

Universal 3.5mm Connectivity

Connect instantly to any device with a standard 3.5mm audio jack, from laptops and phones to tablets and gaming consoles.

3 Month Warranty

Your refurbished Logitech Z150 speakers are protected by our comprehensive 3-month warranty for complete peace of mind.

Clear 6W Stereo Sound

The Z150 delivers crisp 2.0 stereo audio with 6 watts of power for enhanced clarity in music, gaming, and video calls.

Built-in Headphone Jack

Switch seamlessly between speakers and private headphone listening with the convenient front-mounted headphone jack.

Grandstream GSC3510 SIP Paging Intercom Speaker PoE

Universal 3.5mm Connectivity

Connect instantly to any device with a standard 3.5mm audio jack, from laptops and phones to tablets and gaming consoles.

3 Month Warranty

Your refurbished Logitech Z150 speakers are protected by our comprehensive 3-month warranty for complete peace of mind.

Let customers speak for us

from 708 reviews
HP ZBook 17 G6 E-2186M 2.9GHz 64GB 1TB SSD P5200 17.3" UHD W11P | 1yr Wty
Steven

Product is exactly as described, would have no problem buying again

HP ZBook 17 G6 E-2186M 2.9GHz 64GB 1TB SSD P5200 17.3" UHD W11P | 1yr Wty
Microsoft Surface Pro 5 1796 i5 7300U 2.6GHz 4GB 128GB 12" Touch W10P | Wty
Tuaine

I like and very nice clean

Microsoft Surface Pro 5 1796 i5 7300U 2.6GHz 4GB 128GB 12" Touch W10P | Wty
Memory Upgrade
Wayne

Very easy fit

Memory Upgrade
Apple iPhone XR A2105 128GB White Unlocked Smartphone | Wty
David

Great upgrade phone at a very reasonable price.
Condition as stated in description if not better.

Apple iPhone XR A2105 128GB White Unlocked Smartphone | Wty
Dell Latitude 5520 i5 1135G7 2.4GHz 8GB 256GB SSD 15.6" Touch W11P | Wty
Jason

Great little laptop for school

Dell Latitude 5520 i5 1135G7 2.4GHz 8GB 256GB SSD 15.6" Touch W11P | Wty
Dell Latitude 7210 2-in-1 i5 10210U 1.6GHz 8GB 256GB LTE 12.3" Touch W11P | Wty
Shane

Good value and great quality

Dell Latitude 7210 2-in-1 i5 10210U 1.6GHz 8GB 256GB LTE 12.3" Touch W11P | Wty
HP ProDesk 400 G3 SFF i3 6320 3.9GHz 8GB 500GB NO OS Computer | 1yr Wty
T.B.

Fantastic service

HP ProDesk 400 G3 SFF i3 6320 3.9GHz 8GB 500GB NO OS Computer | 1yr Wty
James Lees
All-in-one Solution for Home Office

I was looking for an in-expensive all-in-one solution for my home office to replace my existing desktop and monitor. I found this EliteOne 800 on reboot IT for under $200. I wasn't sure what to expect. It arrived within two days!!!! I upgraded the RAM, replaced the HDD and installed Windows 11. This is unbeatable value and was the cheapest price online. Coupled with a 3-month warranty, Reboot IT are by far the best online refurbished retailer I have used. Awesome!

Reboot IT
Apple iPad 6th Gen 9.7" 32GB Space Grey Wi-Fi + Cellular A10 Unlocked | Wty
Farley

Great service. Product in great condition and exactly what i want. I wanted this for a specific purpose but i dont need to spend $900 on a new one.

Apple iPad 6th Gen 9.7" 32GB Space Grey Wi-Fi + Cellular A10 Unlocked | Wty
Melinda Panuan
Excellent

Excellent work

Reboot IT
steve maloney
exactly as described and works well

exactly as described and works well , just like the staff down there. 10/10

Reboot IT
Lenovo ThinkPad X1 Carbon G5 i7 6600U 2.6GHz 8GB 256GB 14" W10P | Wty
Anonymous
Very happy

Very happy, thank you

Lenovo ThinkPad X1 Carbon G5 i7 6600U 2.6GHz 8GB 256GB 14" W10P | Wty
Barbara Jenkins Jenkins
Just having trouble greeting it linked to the internet otherwise it’s okay

Just having trouble greeting it linked to the internet otherwise it’s okay.

Reboot IT
Dell XPS 13 7390 2-in-1 i7 1065G7 1.3GHz 16GB 512GB SSD 13.4" Touch W11P | Wty
Anonymous
Fair tech for price

Fair tech for price, good specs for era, serves the purpose. The black keyboard is an interesting rubber like texture clearly by design to pad the screen and avoid the keyboard touching. Screen is great. Still looking for magic formula to enable computer use in the bright bright sunshine. Keyboard taps are loud for someone who likes silent touch. The perfect PC has to exist, like build a bear.

Dell XPS 13 7390 2-in-1 i7 1065G7 1.3GHz 16GB 512GB SSD 13.4" Touch W11P | Wty
IAN BOLSTER
Works excellently as advertised.

The laptop was sold with a warning about worn keycaps. In fact they had been obviously vandalised (ex school laptops, perhaps?). The keyboard worked fine, and the rest of the laptop too. I'm using it as a file server, so I don't need the keyboard much. So very pleased, and also pleased with reboot-it's service - as always, excellent, and quick responses to any queries.

Reboot IT

Still undecided? Ask our experts.

Similar Products

Hot Speakers

How Reboot IT Revitalises and Certifies Refurbished Equipment

Learn more

  • Device Arrival

    We carefully source certified refurbished computers from trusted corporate, government, and education sectors, giving each device a fresh start and new purpose.

  • Secure Data Wipe

    To protect your privacy, all previous data is securely and thoroughly erased from every tested refurbished device before it reaches you.

  • Comprehensive Testing

    Each certified refurbished computer undergoes detailed testing with specialized software to ensure full functionality, and any worn or faulty components are replaced exclusively with original parts, guaranteeing reliable, long-lasting performance for your tested refurbished device.

  • Cleaning & Grading

    Every computer is professionally cleaned and carefully graded, so you know exactly what condition your certified refurbished computer is in—giving you full confidence in your purchase.

WELCOME TO REBOOT IT

Australia's number one source for Refurbished Desktops, Laptops, Monitors and more.

Since 2001, Reboot IT has been Australia’s trusted source for certified refurbished computers and IT hardware. Every device is rigorously tested and professionally refurbished to deliver reliable, like-new performance — all at a fraction of the cost of new equipment. With over 100,000 satisfied customers, we combine expert quality with unbeatable value. Shop with confidence knowing your refurbished device comes backed by warranty and supports sustainable tech reuse.

> Learn more

Find a refurbished school laptop for BYOD.

LOOKING FOR A SCHOOL DEVICE?

Contact Us ?

ARE YOU A CORPORATE?

Contact Us >

NEED HELP?

Tech selection can be hard but we have your back.

Contact suport today from 10-6pm weekdays >
  • IBM Business partner

  • We are an IBM authorized reseller for refurbished computer and IT hardware, tested by professional and guaranteed to perform like new.
Back to top