---
product_id: 226370655
title: "Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter for 2 Line Phone Cable (Black, 2 Line Phone Splitter)"
brand: "retailandbulk"
price: "468606₫"
currency: VND
in_stock: true
reviews_count: 9
category: "Retail And Bulk"
url: https://www.desertcart.vn/products/226370655-dual-telephone-line-separator-combiner-3-female-rj11-jack-adapter
store_origin: VN
region: Vietnam
---

# 2-line support 4-wire connectivity easy installation Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter for 2 Line Phone Cable (Black, 2 Line Phone Splitter)

**Brand:** retailandbulk
**Price:** 468606₫
**Availability:** ✅ In Stock

## Summary

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## Quick Answers

- **What is this?** Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter for 2 Line Phone Cable (Black, 2 Line Phone Splitter) by retailandbulk
- **How much does it cost?** 468606₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/226370655-dual-telephone-line-separator-combiner-3-female-rj11-jack-adapter)

## Best For

- retailandbulk enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Sleek:** Black finish blends seamlessly into any workspace.
- • **Professional Quality:** Engineered for reliability, perfect for home offices and businesses.
- • **User-Friendly Design:** Plug-and-play setup ensures hassle-free installation.
- • **Seamless Connectivity:** Effortlessly connect two phone lines with a single adapter.
- • **Versatile Functionality:** Easily switch between separating and combining lines as needed.

## Overview

The Dual Telephone Line Separator/Combiner is a versatile RJ11 jack adapter designed for seamless connectivity between two phone lines. With its user-friendly plug-and-play design, this compact device allows you to easily separate or combine lines, making it an essential tool for both home offices and professional environments.

## Description

Product description Phone Line Splitter ( Separator / Combiner ) Premium Features 100% Copper Wire Conductors We use pure copper, unlike cheap aluminum cables that lose up to a third of the signal. Copper ensures full-strength connections and zero signal loss More Gold on Splitter Contacts Our 2-line phone splitter features 4× thicker gold-plated contacts for corrosion-resistance. Unlike other manufacturers, we prioritize premium quality Broad Compatibility Supports all landline devices: phones, 2-line phones, fax, answering machines, VoIP. Easily split or combine RJ11 phone lines with our line separator Easy Installation Clearly labeled RJ11 line 1 and 2 splitter connectors for easy setup, combining or separating telephone lines Splits 2-Line Telephone Cable into Line-1 and Line-2 * NOTE: This Phone Line Splitter functions as a Line Separator/Combiner , not as a "Telephone Duplex Adapter" or "2-Way Phone Jack Splitter" that converts one phone jack into two. If you’re looking for a Phone Jack Splitter (1-to-2 Jacks) , we also offer those — please scroll down to our Telephone Accessories section and click on "Phone Jack Splitter." Pro Quality 2 Line Separator / Combiner EXPERIENCE SEAMLESS INTEGRATION: Effortlessly separate or combine 2 telephone lines with our innovative solution. SPACE-CONSCIOUS DESIGN: Convenience of a compact form factor, and without the need for external power. UNPARALLELED DURABILITY: Benefit from thicker gold plating, enhancing contact strength and shielding against corrosion. SUPERIOR CRAFTSMANSHIP: Our high grade materials and quality construction provides reliable connection without signal loss. How it works RJ11 Telephone Line Splitter Single Socket End: (6P4C) for a 4-Conductor Cable (This cable carries 2 phone lines, each with a distinct phone number) __________________________________________________________ Double Socket End: (6P2C) Separates out into Line-1 and Line-2 (Each cable carries a phone line with its own phone number) I need a bulk order of telephone cords quickly. Should I choose desertcart Prime or Ships from RetailAndBulk? Ships from RetailAndBulk is fastest for bulk orders. We ship all telephone cables in one shipment the next business day from our NY workshop where we make them. Prime may need to transfer stock to one warehouse first or send multiple packages. I need a bulk order of telephone cords quickly. Should I choose desertcart Prime or Ships from RetailAndBulk? Ships from RetailAndBulk is fastest for bulk orders. We ship all telephone cables in one shipment the next business day from our NY workshop where we make them. Prime may need to transfer stock to one warehouse first or send multiple packages. Are these telephone splitters compatible with all landline phones such as AT&T, Panasonic, and cordless phones? Yes, but note — this is not a phone jack splitter that simply splits a single-line phone service into two jacks for using two phones on the same line. This adapter splits a 4-conductor RJ11 2-line cable into separate jacks for Line 1 and Line 2. Are these telephone splitters compatible with all landline phones such as AT&T, Panasonic, and cordless phones? Yes, but note — this is not a phone jack splitter that simply splits a single-line phone service into two jacks for using two phones on the same line. This adapter splits a 4-conductor RJ11 2-line cable into separate jacks for Line 1 and Line 2. What is the difference between this RJ11 Line Separator/Combiner and a standard 2-way phone jack splitter? This RJ11 Line Separator/Combiner is designed for two-line phone service, where a single 4-conductor RJ11 cable carries Line 1 and Line 2. It separates those lines into individual single-line jacks, each with its own phone number. What is the difference between this RJ11 Line Separator/Combiner and a standard 2-way phone jack splitter? This RJ11 Line Separator/Combiner is designed for two-line phone service, where a single 4-conductor RJ11 cable carries Line 1 and Line 2. It separates those lines into individual single-line jacks, each with its own phone number. Does this phone line splitter come with a phone cord? This listing is for the adapter only. We also offer a combo option [adapter + custom size phone cord]. Scroll to the top of the page to select it — there you can choose a phone cord length from 2 inches to 15 ft along with the phone line splitter. Does this phone line splitter come with a phone cord? This listing is for the adapter only. We also offer a combo option [adapter + custom size phone cord]. Scroll to the top of the page to select it — there you can choose a phone cord length from 2 inches to 15 ft along with the phone line splitter. Do you offer bulk discounts on large orders? Yes, if you have an desertcart Business account, you will see it when adding large quantity to cart. We’ve served many large-scale projects, including hotels, retail chains, new constructions, schools, hospitals, TV stations, and fire departments. Do you offer bulk discounts on large orders? Yes, if you have an desertcart Business account, you will see it when adding large quantity to cart. We’ve served many large-scale projects, including hotels, retail chains, new constructions, schools, hospitals, TV stations, and fire departments. Our Premium Telephone Accessories Phone Jack Splitter Telephone Cords 1 - 15 FT Custom Size Phone Cords Phone Line Extension Cord RJ11 to RJ45 Adapter RJ45 to RJ11 Adapter 10GB Ethernet Couplers

Review: 5 Stars - Exactly what I needed. Received it the next day and performed as expected. 5 stars.
Review: Dual Telephone Line Separator - Great produce

## Features

- Telephone splitter adapter for 2-line separation
- 𝗦𝗶𝗻𝗴𝗹𝗲 𝗦𝗼𝗰𝗸𝗲𝘁 𝗘𝗻𝗱: Connects a 2-line (4-wire) phone cable
- 𝗗𝗼𝘂𝗯𝗹𝗲 𝗦𝗼𝗰𝗸𝗲𝘁 𝗘𝗻𝗱: Separates Line 1 and Line 2 into individual connections
- Can also combine Line 1 and Line 2 into a single 4-wire phone cable
- 𝗡𝗼𝘁𝗲: This is a 2-line splitter, not a 2-way duplex adapter

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08B6GJ5RD |
| Best Sellers Rank | #1,067 in Audio & Video Connectors & Adapters |
| Brand | RetailAndBulk |
| Brand Name | RetailAndBulk |
| Cable Type | Telephone |
| Color | Black |
| Compatible Devices | Answering Machines, DSL, Fax, Telephone |
| Compatible Phone Models | Traditional Landline Phones |
| Connector Gender | Female |
| Connector Type | RJ11 |
| Customer Reviews | 4.2 out of 5 stars 54 Reviews |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Item Shape | Round |
| Manufacturer | RetailAndBulk |
| Maximum Current | 1.5 Amps |
| Model | RJ11-L1-L2 |
| Model Name | Phone Line Splitter Separator/Combiner |
| Number of Items | 1 |
| Number of Pins | 4 |
| Other Special Features of the Product | Premium materials ensure full signal integrity |
| Part Number | RJ11-L1-L2 |
| Recommended Uses For Product | 2-Line Phone |
| Special Feature | Premium materials ensure full signal integrity |
| Specification Met | RoHS |
| UPC | 618020832893 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** RetailAndBulk
- **Connector Type:** RJ11
- **Cable Type:** Telephone
- **Compatible Devices:** Answering Machines, DSL, Fax, Telephone
- **Special Feature:** Premium materials ensure full signal integrity

## Images

![Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter for 2 Line Phone Cable (Black, 2 Line Phone Splitter) - Image 1](https://m.media-amazon.com/images/I/41L9xeQ3pML.jpg)
![Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter for 2 Line Phone Cable (Black, 2 Line Phone Splitter) - Image 2](https://m.media-amazon.com/images/I/51H8LwjiSFL.jpg)
![Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter for 2 Line Phone Cable (Black, 2 Line Phone Splitter) - Image 3](https://m.media-amazon.com/images/I/711GDIqY4CL.jpg)

## Questions & Answers

**Q: I need a bulk order of telephone cords quickly. Should I choose Amazon Prime or Ships from RetailAndBulk?**
A: Ships from RetailAndBulk is fastest for bulk orders. We ship all telephone cables in one shipment the next business day from our NY workshop where we make them. Prime may need to transfer stock to one warehouse first or send multiple packages.

**Q: Are these telephone splitters compatible with all landline phones such as AT&T, Panasonic, and cordless phones?**
A: Yes, but note — this is not a phone jack splitter that simply splits a single-line phone service into two jacks for using two phones on the same line. This adapter splits a 4-conductor RJ11 2-line cable into separate jacks for Line 1 and Line 2.

**Q: What is the difference between this RJ11 Line Separator/Combiner and a standard 2-way phone jack splitter?**
A: This RJ11 Line Separator/Combiner is designed for two-line phone service, where a single 4-conductor RJ11 cable carries Line 1 and Line 2. It separates those lines into individual single-line jacks, each with its own phone number.

**Q: Does this phone line splitter come with a phone cord?**
A: This listing is for the adapter only. We also offer a combo option [adapter + custom size phone cord]. Scroll to the top of the page to select it — there you can choose a phone cord length from 2 inches to 15 ft along with the phone line splitter.

**Q: Do you offer bulk discounts on large orders?**
A: Yes, if you have an Amazon Business account, you will see it when adding large quantity to cart. We’ve served many large-scale projects, including hotels, retail chains, new constructions, schools, hospitals, TV stations, and fire departments.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5 Stars
*by B***W on April 22, 2026*

Exactly what I needed. Received it the next day and performed as expected. 5 stars.

### ⭐⭐⭐⭐⭐ Dual Telephone Line Separator
*by P***B on April 24, 2026*

Great produce

### ⭐⭐⭐⭐⭐ WORKS GREAT...
*by Є***Ⓑ on March 19, 2024*

This product works great. THIS IS NOT A PHONE LINE SPLITTER! This works 2 ways it is for taking 2 separate phone numbers running on one prone line and dividing each phone number onto two separate phone lines (1 phone number per exiting phone cord) Or the second way .. if you have a phone that has 1 port for 2 separate phone numbers this will take 2 phone lines with 2 separate numbers on them and it puts both phone numbers on a single phone line. That's the simplest terms I can put it in. It looks like the similar product that takes 1 phone number and allows you to have that 1 phone number on 2 separate phone cords...but again...this is not that! This does exactly what it says it does.

## Frequently Bought Together

- RetailAndBulk Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter for 2 Line Phone Cable (Black, 2 Line Phone Splitter)
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**Shop now:** [https://www.desertcart.vn/products/226370655-dual-telephone-line-separator-combiner-3-female-rj11-jack-adapter](https://www.desertcart.vn/products/226370655-dual-telephone-line-separator-combiner-3-female-rj11-jack-adapter)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-06-03*