---
product_id: 48216316
title: "BT431A to RJ11 telecom test adaptor"
brand: "rvfm"
price: "52 zł"
currency: PLN
in_stock: true
reviews_count: 8
url: https://www.desertcart.pl/products/48216316-bt431a-to-rj11-telecom-test-adaptor
store_origin: PL
region: Poland
---

# BT431A to RJ11 telecom test adaptor

**Brand:** rvfm
**Price:** 52 zł
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** BT431A to RJ11 telecom test adaptor by rvfm
- **How much does it cost?** 52 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/48216316-bt431a-to-rj11-telecom-test-adaptor)

## Best For

- rvfm enthusiasts

## Why This Product

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

## Description



## Product Details

- **Compatible devices:** Modem
- **Specific uses for product:** Modem
- **Connector type:** RJ11
- **Colour:** White
- **Brand:** RVFM

## Images

![BT431A to RJ11 telecom test adaptor - Image 1](https://m.media-amazon.com/images/I/3138sxHjsIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Working absolutely fine! Very helpful employees in that company!
  

*by E***I on Reviewed in the United Kingdom on 21 February 2013*

Well, at first there was some kind of problem with the delivery and I could not receive it. But it was Royal Mail's fault and not the company's. They were very helpful and very cooperative and even though I did not receive the second delivery either, the company tried for the 3rd time and sent it signed for and 1st class, to make sure I got it this time. Extremely inexpensive and works just fine with my European phone. Excellent value for money!

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Great service & delivery.
  

*by R***A on Reviewed in the United Kingdom on 30 April 2016*

Everything seems good - I'm sure it will be if I ever get anyone to fit it for me :-)

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Telephone adapter NOT broadband ADSL modem adapter.
  

*by D***D on Reviewed in the United Kingdom on 18 August 2012*

This item is a telephone adapter between a BT telephone socket and an RJ11 plug. It is NOT an adapter from a BT telephone socket to an ADSL (broadband) modem that uses an RJ11 connector.This item connects BT telephone plug pins 2,3,4 & 5 to RJ11 socket pins 2,3,4 & 5 respectively. It is intended to connect phones with an RJ11 plug to a BT telephone socket as reported by other reviewers. It is also suitable for connecting a dial-up modem to a BT socket using a four-wire RJ11 - RJ11 lead.(To connect an ADSL (broadband) modem to a BT socket, pins 2 & 5 of the BT telephone plug need to be wired to pins 3 & 4 of the RJ11 socket. A normal broadband ADSL microfilter provides this connection as well as inserting filters between the BT telephone plug and the BT telephone socket connections.)

## Frequently Bought Together

- BT431A to RJ11 telecom test adaptor
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**Shop now:** [https://www.desertcart.pl/products/48216316-bt431a-to-rj11-telecom-test-adaptor](https://www.desertcart.pl/products/48216316-bt431a-to-rj11-telecom-test-adaptor)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-12*