The Grandstream GDS3702 is an HD Audio IP Intercom System designed for secure facility access control and two-way communication. It features a simple single-button design, built-in microphone and HD loudspeaker, and SIP/VoIP support for communication with compatible IP phones and SIP endpoints.

The GDS3702 supports integration with electric locks, door sensors, exit buttons and existing security systems through its relay and alarm inputs. Its metal enclosure is weatherproof and vandal resistant, making it suitable for both indoor and outdoor access-control installations.

Key Features:
• HD two-way audio communication
• Simple single-button operation
• SIP/VoIP support for calls to IP phones and SIP endpoints
• Built-in microphone and 2W HD loudspeaker
• Up to 1.5 m microphone pickup and up to 3 m speaker coverage
• 2 relay outputs for electric locks and alarm devices
• 2 alarm inputs for door sensors and exit buttons
• Integrated PoE for power and network connectivity
• IP66 weatherproof protection
• IK10 vandal-resistant metal casing
• Supports Grandstream GDS Manager software
• Suitable for offices, apartments, villas, commercial buildings, schools and other facilities

Brand: Grandstream
Model: GDS3702
Product Type: HD Audio IP Intercom System
Button: Single Configurable Button
Audio: HD Two-Way Audio
Microphone: Built-in, up to 1.5 m pickup
Speaker: Built-in 2W HD Loudspeaker, up to 3 m
SIP/VoIP: Yes
Voice Codecs: G.711μ/a, G.722
Network Interface: 10/100 Mbps Auto-Sensing Ethernet
PoE: IEEE 802.3af Class 3
Power: PoE or 12VDC/1A
Relay Outputs: 2
Alarm Inputs: 2
Relay Rating: 125VAC/0.5A or 30VDC/2A
Weather Protection: IP66
Vandal Resistance: IK10
Operating Temperature: -30°C to 60°C
Storage Temperature: -35°C to 60°C
Humidity: 10%–90% RH, non-condensing
Mounting: On-Wall / In-Wall with optional mounting kit
On-Wall Dimensions: 173 × 80 × 36 mm
In-Wall Dimensions: 217 × 120 × 11.6 mm
Weight: 672 g
Management Software: Grandstream GDS Manager