The CyberData SIP Speaker with Talk-Back (Model 011394) is a versatile indoor public address system designed for seamless integration into existing local area networks using Power-over-Ethernet (PoE 802.3af/802.3at). Supporting the SIP (RFC 3261) protocol and multicast paging, this speaker ensures reliable voice communication for offices, classrooms, and healthcare environments.

Key Features:

• Full-duplex talk-back with configurable echo cancellation allows two-way conversations for clear communication.
• Supports adaptive half-duplex audio with VOX and push-to-talk capabilities via phone (DTMF) or CyberData Remote Call Button.
• Simultaneous SIP and multicast paging with support for up to 10 multicast groups enables flexible paging scenarios.
• Ambient noise compensation automatically adjusts speaker volume based on environmental noise levels.
• Includes audio health check function for hardware validation and monitor mode support.
• Network security enhanced with TLS 1.2, SRTP, HTTPS, and autoprovisioning via HTTP/HTTPS/TFTP.
• I/O features include a DTMF-controlled relay, line-out, auxiliary strobe support, and ability to drive an external analog speaker.
• Supports paging prioritization, user-uploadable ring and alert tones, and multiple SIP servers for redundancy.

Physical Specifications:

• Grille diameter: 230 mm (9.055 in)


• Can diameter: 184.2 mm (7.25 in)


• Can depth: 76.11 mm (3.08 in)


• Weight: ~1.36 kg (3.0 lbs)

For detailed product information and support, visit [CyberData's official product page](https://www.cyberdata.net/products/011394).