Grandstream Gds3705 Door Control System

The Grandstream GDS3705 is a professional IP audio door access control system designed to secure entry points in offices, apartments, warehouses, and gated facilities. It enables remote door access, SIP intercom communication, and RFID-based keyless entry. Specifications • SIP-based audio door intercom system • Built-in RFID card reader (125kHz EM cards) for keyless entry • HD audio with dual microphones + loudspeaker • Advanced echo cancellation (AEC) for clear communication • 2 × relay outputs for electric door lock control • 2 × alarm inputs + 1 alarm output for security integration • 10/100 Mbps Ethernet with PoE (IEEE 802.3af) • Weatherproof and vandal-resistant metal casing (IP66, IK09) • Supports SIP calls to IP phones and PBX systems • Built-in keypad (depending on variant) for PIN entry access