The GDS3702 is an HD audio IP intercom system that allows access control for buildings of any size remotely. This unit includes a built-in microphone and speaker to support intercom functionality, supports integration with electric locks to lock and unlock doors, and provides alarm-in and alarm-out support for integration with existing security systems. The GDS3702 works with Grandstream free GDS Manager management software. It features SIP/VoIP technology with 2-way HD audio, IP66 weatherproof enclosure and is vandal proof. The combination of the GDS3702, Grandstream IP phones, the Wave mobile app and other third-party IP devices provides a complete end-to-end solution for access control and intercom requirements.