YEALINK 1304032 - Video Conferencing Expansion Speakerphone

Overview

The Yealink CPE40 (MPN: 1304032) is a professional-grade, wired video conferencing expansion speakerphone engineered to scale audio coverage in medium to extra-large meeting environments. The system resolves acoustic limits and localized voice dropouts by functioning as a high-performance extension node for the primary Yealink CP50 speakerphone terminal. It establishes an active distributed audio mesh where multiple downstream units deploy across expansive configuration layouts to maintain uniform vocal clarity.

The structural design houses an upgraded 8-unit omnidirectional microphone array providing full 360-degree voice tracking up to a 6-meter radius per device, paired with a front-facing 4W full-frequency playback speaker. Signal processing is governed by Yealink's second-generation AI audio algorithms, which automatically execute real-time echo cancellation, automatic gain adjustments, and deep reverberation removal to suppress HVAC hums or mechanical keyboard clicks. The node architecture utilizes an in/out dual RJ-45 bus pattern to support efficient daisy-chain configurations of up to 8 units using standard Ethernet cables, completely avoiding table wiring clutter. Do not deploy this hardware as an independent standalone USB speakerphone or direct VoIP desk terminal, as it lacks internal compute, wireless chips, or local power registration, relying entirely on the host CP50 link for PoE power and voice routing.

Key Features

• 8-unit microphone array achieves uniform 360-degree room pickup.

• 6-meter voice tracking radius covers wide boardroom tables easily.

• Native full-duplex technology ensures natural bidirectional conversations.

• Multi-unit cascading support links up to 8 devices sequentially.

• Onboard capacitive buttons sync real-time meeting software states fast.

Specifications