Poly APU-75D TAA Electronic Hookswitch

Overview

The Poly 85Q99AA is the APU-75D electronic hook switch adapter, designed to connect your Poly CS500 or CS500-XD headset with a compatible desk phone. This small but essential device allows you to answer and end calls remotely from your headset, eliminating the need to physically lift the handset. It supports seamless call control, helping you stay productive whether you’re at your desk or moving around your workspace.

Installation is simple and fast, requiring no extra power supply or software. The adapter is TAA compliant, making it suitable for government agencies and organizations that follow Trade Agreements Act purchasing requirements. Its reliable design ensures consistent audio quality and dependable performance throughout your workday.

Key features

• Enables remote call answering and ending directly from the Poly CS500 or CS500-XD headset, enhancing user mobility
• Quick, tool-free installation with no need for additional power bricks or software, so you can start using it immediately
• TAA compliance ensures it meets procurement standards for government and enterprise environments
• Durable build and stable signal path maintain clear audio and reliable operation during extended use
• Supports busy office settings, contact centers, and home offices where hands-free call control improves workflow

Key specs

• Compatibility: Poly CS500 and CS500-XD headsets with compatible desk phones
• Compliance: Trade Agreements Act (TAA) compliant
• Power: No external power supply required
• Setup: Plug-and-play with simple pairing steps
• Connection type: Electronic hook switch interface

Connectivity and compatibility

This adapter connects directly between your Poly headset base and a compatible desk phone, enabling electronic hook switch functionality. It works seamlessly with Poly CS500 and CS500-XD headsets, ensuring that call control commands are transmitted reliably without additional hardware or software. This makes it a practical addition to existing Poly headset setups in professional environments.

Ideal uses and environments

The APU-75D adapter is well suited to environments where users need to move freely without missing calls. It fits naturally in reception areas, contact centers, shared office spaces, and home offices. By allowing remote call control, it supports workflows that require multitasking and mobility, helping users maintain focus and efficiency throughout the day.