Product DescriptionProfessional grade SIP doorbell designed for modern IP communication systems, featuring a built in microphone and high quality speaker for clear two way audio. It connects directly to VoIP or IP PBX systems, allowing users to answer, talk, and control door access remotely from any SIP compatible device. Built with durable materials for long term reliability, it supports Power over Ethernet (PoE) for easy installation and stable operation. Ideal for offices, apartment buildings, and commercial entrances, this SIP doorbell enhances security and convenience by integrating access control with IP communication networks.