HP Poly Savi D400 UC DECT 1880-1900 MHz dongle

The POLY Savi D400 DECT Dongle operates in the 1880–1900 MHz frequency band and is designed to provide wireless connectivity for Poly Savi series headsets. It enables secure DECT communication between compatible headsets and a computer or UC platform, allowing users to manage calls, audio, and softphone applications without cables. The dongle supports reliable signal transmission and is suitable for professional environments that require mobility and clear voice quality.

Advantages

The DECT dongle delivers stable wireless performance within its supported frequency range, reducing interference from Wi‑Fi and other radio sources. It offers simple plug‑and‑play connection to a USB port and maintains consistent audio clarity across typical office distances. Its compatibility with Poly Savi headsets ensures integrated call control and a seamless user experience when working with unified communications applications.

Suitable for

• Office professionals using Poly Savi series headsets with a PC or softphone
• Contact centre agents requiring mobility and reliable voice quality
• Home office users who need cable-free headset connectivity
• Teams working in environments where DECT offers lower interference than Wi‑Fi

Key specifications

• Operating frequency: 1880–1900 MHz (DECT band)
• Wireless technology: DECT
• Interface: USB connection for host device
• Compatibility: Designed for use with Poly Savi series headsets
• Audio: Optimised for clear voice transmission with supported headsets
• Range: Typical office-range DECT coverage (line‑of‑sight varies by environment)

How to use

Insert the DECT dongle into an available USB port on the computer and allow the operating system to recognise the device. Pair the dongle with a compatible Poly Savi headset following the headset pairing procedure: place the headset into pairing mode and initiate pairing from the headset or following the headset user guide. Once paired, set the dongle as the audio device in the softphone or communication application to route calls and media through the headset. For best results, keep the dongle unobstructed and within the typical range of the headset.

Recommendations

Place the dongle in a USB port that provides a direct line of sight to the headset when possible and avoid placing it near large metal objects or dense partitions. For multi‑device environments, ensure devices using nearby wireless bands do not obstruct line‑of‑sight. Keep firmware and UC application drivers up to date to maintain compatibility and secure connection behaviour.