| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |

The Grandstream GDS3727 is a SIP-based video doorphone equipped with a 4MP HD camera for high-resolution monitoring and secure entry management. It supports SIP audio/video calling, RFID-based keyless access, and seamless IP PBX integration. With PoE capability, alarm in/out interfaces, and durable weatherproof construction, the GDS3727 is ideal for modern enterprise and commercial access control systems.