---
product_id: 98048433
title: "VoiceJoy Headset Adapter for 2.5mm Headset, RJ9/RJ10/RJ22 Plug Adapter Converter for Aastra Adtran BT Alcatel Lucent,Avaya 2400,4600 Series, Interquartz Lazerbuilt Ascom Telephone Phones"
brand: "voicejoy"
price: "¥2799"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/98048433-voicejoy-headset-adapter-for-2-5mm-headset-rj9-rj10-rj22
store_origin: JP
region: Japan
---

# Lightweight design RJ9/RJ10/RJ22 support 2.5mm compatibility VoiceJoy Headset Adapter for 2.5mm Headset, RJ9/RJ10/RJ22 Plug Adapter Converter for Aastra Adtran BT Alcatel Lucent,Avaya 2400,4600 Series, Interquartz Lazerbuilt Ascom Telephone Phones

**Brand:** voicejoy
**Price:** ¥2799
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with Confidence: Your Office, Your Headset, Your Way!

## Quick Answers

- **What is this?** VoiceJoy Headset Adapter for 2.5mm Headset, RJ9/RJ10/RJ22 Plug Adapter Converter for Aastra Adtran BT Alcatel Lucent,Avaya 2400,4600 Series, Interquartz Lazerbuilt Ascom Telephone Phones by voicejoy
- **How much does it cost?** ¥2799 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/98048433-voicejoy-headset-adapter-for-2-5mm-headset-rj9-rj10-rj22)

## Best For

- voicejoy enthusiasts

## Why This Product

- Trusted voicejoy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Portable:** Weighing just 0.634 ounces, take your adapter anywhere with ease.
- • **User-Friendly Design:** Simple plug-and-play functionality for hassle-free setup.
- • **Cost-Effective Solution:** Utilize standard 2.5mm headsets and save on expensive phone models.
- • **Versatile Compatibility:** Designed for select Aastra, Avaya, and Alcatel Lucent models.
- • **Transform Your Communication:** Easily convert your 2.5mm headset for seamless office use.

## Overview

The VoiceJoy Headset Adapter allows you to connect standard 2.5mm headsets to specific office phones, including select models from Aastra, Avaya, and Alcatel Lucent. Weighing only 0.634 ounces and measuring 3.1 x 2.1 x 0.3 inches, this compact adapter is a cost-effective solution for enhancing your communication experience.

## Description

VoiceJoy Headset Adapter for 2.5mm Headset, RJ9/RJ10/RJ22 Plug Adapter Converter for Aastra Adtran BT Alcatel Lucent,Avaya 2400,4600 Series, Interquartz Lazerbuilt Ascom Telephone Phones

## Features

- ATTENTION:NOT FOR AVAYA 1600 9600 Series,Cisco phones,Yealink, Grandstream Phones and Snom Phones.
- NOTICE: Only Compatible With 2.5MM Headset And Some Specific Phones. Please see compatible phone models list in description below. Check our store for headset adapter for other phone models or Contact Us for Compatibility Guide!
- Save money by buying standard 2.5mm phone headsets to use with your phone's headset jack
- Convert 2.5mm plug to single 4P4C RJ9/RJ10 headset or handset plug for your office phone
- NOTICE: Only Compatible With 2.5MM Headset And Some Specific Phones. Please see compatible phone models list in description below. Check our store for headset adapter for other phone models or Contact Us for Compatibility Guide!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | VoiceJoy |
| Brand | VoiceJoy |
| Item Weight | 0.634 ounces |
| Package Dimensions | 3.1 x 2.1 x 0.3 inches |
| Item model number | VoiceJoy-15 |
| Is Discontinued By Manufacturer | No |
| Color | Black |
| Number of Items | 1 |

## Images

![VoiceJoy Headset Adapter for 2.5mm Headset, RJ9/RJ10/RJ22 Plug Adapter Converter for Aastra Adtran BT Alcatel Lucent,Avaya 2400,4600 Series, Interquartz Lazerbuilt Ascom Telephone Phones - Image 1](https://m.media-amazon.com/images/I/61oCjJkdB6L.jpg)
![VoiceJoy Headset Adapter for 2.5mm Headset, RJ9/RJ10/RJ22 Plug Adapter Converter for Aastra Adtran BT Alcatel Lucent,Avaya 2400,4600 Series, Interquartz Lazerbuilt Ascom Telephone Phones - Image 2](https://m.media-amazon.com/images/I/61iEmzdUTgL.jpg)
![VoiceJoy Headset Adapter for 2.5mm Headset, RJ9/RJ10/RJ22 Plug Adapter Converter for Aastra Adtran BT Alcatel Lucent,Avaya 2400,4600 Series, Interquartz Lazerbuilt Ascom Telephone Phones - Image 3](https://m.media-amazon.com/images/I/41GeH4NdJ7L.jpg)
![VoiceJoy Headset Adapter for 2.5mm Headset, RJ9/RJ10/RJ22 Plug Adapter Converter for Aastra Adtran BT Alcatel Lucent,Avaya 2400,4600 Series, Interquartz Lazerbuilt Ascom Telephone Phones - Image 4](https://m.media-amazon.com/images/I/61S67gINmwL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Sound quality
  

*by K***E on Reviewed in the United States on February 9, 2022*

The item was tip-top! Swift to send. Invaluable packaging. Seller is state-of-the-art and matchless.

### ⭐ 1.0 out of 5 stars







  
  
    Doesn't work!
  

*by A***R on Reviewed in the United States on February 26, 2021*

Does not work. Plugged it in and got a dial tone, made my first call, and the other person couldn't hear me at all. A few test calls later and my sound ALSO declined, but still no one could hear me. Amazon refunded, didn't even bother asking me to send it back.

### ⭐⭐ 2.0 out of 5 stars







  
  
    Make certain that your phone can transmit/receive...
  

*by R***C on Reviewed in the United States on January 24, 2023*

It's not this device's fault that it does not work with my office's Cisco IP Phone: it connects, it receives, but it doesn't transmit...again, it cannot be "fully" said that it is this item's fault, but...

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**Shop now:** [https://www.desertcart.jp/products/98048433-voicejoy-headset-adapter-for-2-5mm-headset-rj9-rj10-rj22](https://www.desertcart.jp/products/98048433-voicejoy-headset-adapter-for-2-5mm-headset-rj9-rj10-rj22)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-15*