Grandstream GDS3705 IP Audio Door System

The Grandstream GDS3705 is a robust IP audio door system designed for secure, audio-only facility access and security monitoring. Ideal for environments of all sizes, it provides an advanced intercom solution with superior audio clarity through dual microphones and an HD loudspeaker equipped with Acoustic Echo Cancellation (AEC). The system supports SIP calls to IP phones enabling seamless communication and remote access management.

Built to withstand harsh outdoor conditions, the unit features a zinc alloy metal casing that is both weatherproof and vandal resistant. It includes a built-in RFID chip reader and keypad for versatile keyless or keyed entry, enhancing security and convenience.

The GDS3705 integrates well within existing security setups by supporting alarm-in and alarm-out functionalities and is manageable via Grandstream's free GDSManager and GDMS software for centralized control and RFID card management. The device is powered and connected over a single Ethernet cable using PoE (IEEE 802.3af Class 3), simplifying installation.

Key Features:

• HD audio with dual microphones & HD loudspeaker, supporting up to 1.5 m audio input and 3 m audio output range


• Built-in RFID chip reader and keypad for secure access control


• SIP protocol support for compatibility with IP phones and intercom systems


• Durable, vandal-resistant zinc alloy metal casing that is weatherproof


• Power-over-Ethernet (PoE) connection for easy deployment


• Alarm-in and alarm-out capabilities for integration with other security devices


• Full management via Grandstream’s GDSManager and GDMS platforms

[Product Datasheet (PDF)](