GDS3705

The Grandstream GDS3705 is a professional IP Audio Door Access and Intercom System designed to provide secure facility access, two-way audio communication, and integrated security management for residential, commercial, and enterprise environments. It combines SIP-based communication, RFID access control, a keypad, alarm interfaces, and a durable metal enclosure in a single solution.

The GDS3705 features dual integrated microphones and a 2W HD loudspeaker with advanced Acoustic Echo Cancellation (AEC), providing clear two-way intercom communication. It supports SIP calls to IP phones and other compatible SIP endpoints, allowing visitors and staff to communicate directly through the organization's IP communication system.

The device includes a built-in 125KHz EM4100 RFID card reader and a 12-key metal keypad plus doorbell button, enabling secure keyless or PIN-based access. It also provides 2 alarm inputs and 2 relay outputs, along with RS485 and Wiegand interfaces, allowing integration with electric locks, exit buttons, door sensors, alarm systems, and other access-control equipment.

Key Features:

• IP-based audio door access and intercom system.

• 4 SIP accounts and 4 lines.

• Dual integrated microphones.

• 2W HD loudspeaker with advanced Acoustic Echo Cancellation.

• Audio input range up to 1.5 meters.

• Audio output range up to 3 meters.

• Built-in 125KHz EM4100 RFID card reader.

• Supports up to 2,000 RFID cards.

• 12 metal keypad keys plus a metal doorbell button.

• Supports SIP calls to IP phones and other SIP endpoints.

• 2 alarm inputs for door sensors, exit buttons, and other security devices.

• 2 relay outputs for electric locks, switches, and alarm devices.

• Supports RS485 interface.

• Supports Wiegand 26-bit input and output.

• 10/100Mbps Ethernet connectivity.

• Integrated IEEE 802.3af PoE for network connectivity and power.

• Weather-resistant and vandal-resistant zinc alloy metal housing.

• IP66 weather protection.

• IK09 vandal-resistance rating.

• Supports voice codecs including G.711 μ/a-law, G.722, and G.729A/B.

• Supports TLS and SRTP for secure communication.

• Supports VLAN and QoS for optimized network and voice traffic.

• Compatible with GDS Manager for centralized device and RFID card management.

• Compatible with Grandstream IP phones, video phones, and Wave applications.

• Suitable for wall-mounted and in-wall installations.

Applications:

• Office and corporate building access.

• Residential and apartment buildings.

• Hotels and hospitality facilities.

• Schools and educational institutions.

• Warehouses and industrial facilities.

• Retail stores and commercial properties.

• Reception and entrance areas.

• Secure employee and visitor access.

• IP-based intercom systems.

• Integration with electric locks and existing security systems.

The Grandstream GDS3705 provides a comprehensive solution for IP-based access control, two-way audio intercom, and facility security, combining RFID authentication, keypad access, SIP communication, alarm integration, PoE connectivity, and a weather- and vandal-resistant enclosure in one professional device.