---
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: "¥2683"
currency: JPY
in_stock: true
category: "Retail And Bulk"
url: https://www.desertcart.jp/products/226370655-dual-telephone-line-separator-combiner-3-female-rj11-jack-adapter
store_origin: JP
region: Japan
---

# 1.5A max current capacity 2-line RJ11 splitter/combiner 4-wire full signal integrity Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter for 2 Line Phone Cable (Black, 2 Line Phone Splitter)

**Brand:** retailandbulk
**Price:** ¥2683
**Availability:** ✅ In Stock

## Summary

> 📞 Stay connected, split smart — never miss a call again!

## 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?** ¥2683 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/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

- • **Plug & Play Convenience:** No technical hassle—just connect and experience instant multi-line functionality.
- • **Compact & Durable Design:** Sleek black finish fits discreetly in any professional or home office setup.
- • **Premium Signal Integrity:** Crafted with high-quality materials to maintain crystal-clear audio without interference.
- • **Seamless 2-Line Separation:** Effortlessly split or combine dual phone lines with a single adapter.
- • **Universal RJ11 Compatibility:** Works flawlessly with all standard 2-line telephones and related devices.

## Overview

The RetailAndBulk Dual Telephone Line Separator/Combiner is a compact, black RJ11 adapter designed to split or combine two phone lines with full 4-wire signal integrity. Supporting up to 1.5A current, it ensures reliable connections for 2-line telephones, fax machines, and DSL devices, making it an essential tool for professionals managing multiple phone lines seamlessly.

## Description

Buy RetailAndBulk Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter for 2 Line Phone Cable (Black, 2 Line Phone Splitter): Telephone Cords - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## 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 | #988 in Audio & Video Connectors & Adapters |
| Brand Name | RetailAndBulk |
| Cable Type | Telephone |
| Color | Black |
| Compatible Devices | Answering Machines, DSL, Fax, Telephone |
| Compatible Phone Models | 2 line telephone, 2-Line Corded Speakerphone, 2-line phone, ML17929 |
| Connector Gender | Female |
| Connector Type | RJ11 |
| Customer Reviews | 4.2 4.2 out of 5 stars (57) |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Item Shape | Round |
| Manufacturer | RetailAndBulk |
| Maximum Current | 1.5 A |
| 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 |
| Specification Met | RoHS |
| UPC | 618020832893 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** RetailAndBulk
- **Cable Type:** Telephone
- **Compatible Devices:** Answering Machines, DSL, Fax, Telephone
- **Connector Type:** RJ11
- **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)

## Available Options

This product comes in different **Color, Style** options.

## 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.

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**Shop now:** [https://www.desertcart.jp/products/226370655-dual-telephone-line-separator-combiner-3-female-rj11-jack-adapter](https://www.desertcart.jp/products/226370655-dual-telephone-line-separator-combiner-3-female-rj11-jack-adapter)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-17*