--- product_id: 72517067 title: "4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc" brand: "voicejoy" price: "€ 32.47" currency: EUR in_stock: true category: "Voice Joy" url: https://www.desertcart.pt/products/72517067-4p4c-rj9-splitter-training-adapter-telephone-training-adapter-y-splitter store_origin: PT region: Portugal --- # Plug & play, zero setup hassle 2 mute buttons for discreet control RJ9 connector, universal headset compatibility 4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc **Brand:** voicejoy **Price:** € 32.47 **Availability:** ✅ In Stock ## Summary > 🔄 Double the ports, double the control—train smarter, talk clearer! ## Quick Answers - **What is this?** 4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc by voicejoy - **How much does it cost?** € 32.47 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/72517067-4p4c-rj9-splitter-training-adapter-telephone-training-adapter-y-splitter) ## 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 - • **Dual Mute Mastery:** Control your call flow with two intuitive mute buttons—silence when you need it, hear always. - • **Compact Matte Finish:** Sleek, unobtrusive design that fits right into your professional workspace without clutter. - • **Perfect for Training:** Empower call centers and sales teams with simultaneous listening and speaking for real-time coaching. - • **Effortless Plug & Play:** No tech headaches—just plug into handset or headset ports and get instant dual-user access. - • **Universal Compatibility:** Seamlessly connects with top brands like Nortel, Avaya, Polycom—except Cisco, so check your gear. ## Overview The VoiceJoy 4P4C RJ9 Splitter Training Adapter is a plug-and-play Y splitter designed for telephone training environments. It features two mute buttons allowing one-way silence while maintaining audio reception, supports major brands like Nortel, Avaya, and Polycom, and enables dual users to listen and speak simultaneously through a single phone line. Ideal for call centers and marketing teams, this matte-finished adapter enhances collaboration without compatibility for Cisco phones. ## Description Easy setup Y training adapter splitter that you can plug into either the telephone handset port or headset port and the adapter splitter will give you two more ports to headset or handset corded plug in. Now both users can simultaneous listening / talking, mute when need, into one conversion via this adapter. ## Features - Mute button:When you press it, the other end will not hear you. But you can hear him. - Can plug either into handset port or headset port - Great use for call center / telephone marketing trainings - Easy setup, plug and play - DO NOT WORK FOR CISCO Phones. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01N5KM1J6 | | Best Sellers Rank | #406,325 in Office Products ( See Top 100 in Office Products ) #134 in VoIP Telephone Adapters | | Brand | VoiceJoy | | Color | With 2 Mute Switch | | Compatible Devices | Nortel, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge (Not compatible with CISCO) | | Connector Type | rj9 | | Customer Reviews | 3.9 3.9 out of 5 stars (42) | | Finish | Matte | | Manufacturer | VoiceJoy | | Mfr Part Number | VoiceJoy-33 | | Model Number | VoiceJoy-33 | | Number of Items | 1 | | Number of Ports | 2 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Specific Uses For Product | Telephone | | Unit Count | 1 Count | ## Product Details - **Brand:** VoiceJoy - **Color:** With 2 Mute Switch - **Compatible Devices:** Nortel, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge (Not compatible with CISCO) - **Connector Type:** rj9 - **Specific Uses For Product:** Telephone ## Images ![4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc - Image 1](https://m.media-amazon.com/images/I/51aU2UAY5PL.jpg) ![4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc - Image 2](https://m.media-amazon.com/images/I/61FznpL1rpL.jpg) ![4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc - Image 3](https://m.media-amazon.com/images/I/618ir497SfL.jpg) ![4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc - Image 4](https://m.media-amazon.com/images/I/71sBbpN7MVL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/72517067-4p4c-rj9-splitter-training-adapter-telephone-training-adapter-y-splitter](https://www.desertcart.pt/products/72517067-4p4c-rj9-splitter-training-adapter-telephone-training-adapter-y-splitter) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-08*