Technology Accessories / Public Address Systems
Grandstream GSC3505 – Altavoz IP SIP (Unidireccional)
The Grandstream GSC3505 is an IP speaker designed for public address, paging, and voice announcement solutions over IP networks. It is ideal for corporate, educational, healthcare, and smart building environments that require clear message broadcasting using SIP or multicast protocols. It stands out for its flexible connectivity options and HD audio quality.
Main features
- One-way IP speaker for announcements and paging
- Compatible with SIP paging and multicast paging
- High-quality audio with support for Opus and G.722 codecs
- Integrated dual-band Wi-Fi (2.4 GHz / 5 GHz)
- Built-in Bluetooth for additional connectivity
- Ethernet port with PoE / PoE+ support
- Call priority management and access control lists
Technical specifications
Device Type
SIP IP Speaker
Communication
One-way
Protocol
SIP 2.0, Multicast
Audio
HD (Opus, G.722)
Network
10/100 Mbps Ethernet
Power Supply
PoE / PoE+
Wi-Fi
Dual-band
Bluetooth
Yes
Typical Use
PA paging and announcements
About the brand
Grandstream is a well-known manufacturer of enterprise IP communication solutions. The GSC3505 is part of its IP paging and public address device portfolio, designed for seamless integration with SIP PBXs and unified communications platforms.

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