Intercom · PA Speaker

Grandstream GSC3505

Name: Grandstream GSC3505
Brand: Grandstream
Availability: InStock

8W One-Way SIP Paging Speaker with Wi-Fi and PoE

The Grandstream GSC3505 is a one-way public address SIP speaker that lets offices, schools, hospitals, apartments and warehouses build powerful announcement and paging solutions. It pairs a high-fidelity 8W HD speaker and HD acoustic chamber with a 10/100Mbps network port supporting PoE and PoE+, integrated dual-band 2.4GHz and 5GHz Wi-Fi, Bluetooth, and a multi-purpose input port for connecting a wide range of peripherals.

8W HD Speaker

High-fidelity output

PoE / PoE+ Powered

Single-cable install

Dual-Band Wi-Fi

2.4GHz and 5GHz

Multi-Purpose Input

Connect peripherals

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Technical Features

Clear Announcements, Simple Deployment

The GSC3505 is the cost-effective way to add SIP paging and public address to any indoor space.

High-Fidelity 8W HD Speaker

An 8W speaker with HD acoustic chamber delivers clear, intelligible announcements across offices, classrooms and corridors

Full-Band and Wide-Band Audio

Support for full-band and wide-band codecs including Opus and G.722 keeps speech natural and easy to understand

PoE and PoE+ Network Port

A single 10/100Mbps Ethernet cable carries both data and power, simplifying installation and reducing cost

Integrated Dual-Band Wi-Fi

Built-in 2.4GHz and 5GHz Wi-Fi allows deployment where running network cable is impractical

Integrated Bluetooth

Bluetooth support extends how the speaker can be used and paired within a facility

Multi-Purpose Input Port

A flexible input port supports a wide range of peripherals for customised paging and alerting setups

SIP and Multicast Paging

Works as a SIP endpoint or in multicast paging groups, integrating with your existing phone system

Auto Configuration

Zero-touch provisioning and auto-configuration make multi-device rollouts fast for installers

Free GDMS Management

Provision, monitor and update every speaker centrally through Grandstream's free GDMS platform

Frequently Asked Questions

Grandstream GSC3505 — Common Questions

Everything you need to know about the Grandstream GSC3505 before you buy.

What is the Grandstream GSC3505?

The GSC3505 is a one-way public address SIP speaker. It allows offices, schools, hospitals, apartments and similar facilities to build public address and paging announcement solutions that expand security and communication.

Does the GSC3505 have a microphone?

No. The GSC3505 is a one-way paging and public address speaker, so it plays announcements but does not pick up audio. If you need two-way talk-back intercom, choose the GSC3510 or GSC3516 instead.

How is the GSC3505 powered?

It has a 10/100Mbps network port supporting PoE and PoE+, so a single Ethernet cable provides both network connectivity and power with no separate power supply required.

What is the difference between the GSC3505 and the GSC3506?

Both are one-way public address SIP speakers with the same core feature set. The GSC3505 has an 8W high-fidelity speaker suited to rooms and corridors, while the GSC3506 steps up to a 30W speaker for larger or noisier spaces.

Can the GSC3505 be used over Wi-Fi?

Yes. It includes integrated dual-band 2.4GHz and 5GHz Wi-Fi, which is useful where running new network cabling to a speaker location would be difficult or expensive.

How do I buy the Grandstream GSC3505 in India?

Cohesive Technologies is an authorised Grandstream distributor for India, Sri Lanka, Nepal and the Maldives. Contact our team for GSC3505 pricing, stock availability, demo units and pre-sales design support, and we will connect you with your nearest authorised partner.