--- product_id: 12751996 title: "Lucent/Avaya 8403 Definity Digital PBX Speaker Phone (840302DA), Black" brand: "lucent" price: "€ 278.59" currency: EUR in_stock: false url: https://www.desertcart.pt/products/12751996-lucent-avaya-8403-definity-digital-pbx-speaker-phone-840302da-black store_origin: PT region: Portugal --- # 3 call appearance buttons Built-in speakerphone 8 fixed feature buttons Lucent/Avaya 8403 Definity Digital PBX Speaker Phone (840302DA), Black **Brand:** lucent **Price:** € 278.59 **Availability:** ❌ Out of Stock ## Summary > 📞 Elevate your office calls with precision and power! ## Quick Answers - **What is this?** Lucent/Avaya 8403 Definity Digital PBX Speaker Phone (840302DA), Black by lucent - **How much does it cost?** € 278.59 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/12751996-lucent-avaya-8403-definity-digital-pbx-speaker-phone-840302da-black) ## Best For - lucent enthusiasts ## Why This Product - Trusted lucent brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **User-Friendly Controls:** Rocker-type volume control and LED message waiting light keep you informed and in command. - • **Enhanced Audio Flexibility:** Built-in speakerphone and adjunct ports support headsets and optional audio devices for crystal-clear communication. - • **Effortless Multiline Management:** Handle up to 3 calls simultaneously with dedicated call appearance buttons for seamless multitasking. - • **Instant Access to Key Functions:** 8 fixed feature buttons including Conference, Hold, Transfer, and Mute streamline your workflow. - • **Reliable Business Communication:** Compatible with all Definity PBX systems, ensuring smooth integration and dependable performance. ## Overview The Lucent/Avaya 8403 Definity Digital PBX Speaker Phone is a robust, multiline business phone designed for Definity PBX systems. Featuring 3 call appearance buttons, 8 fixed feature keys, and a built-in speakerphone, it enables efficient call handling and conferencing. Its adjunct ports support headsets and other audio devices, while user-friendly controls like rocker volume and LED message alerts enhance productivity. Ideal for professional environments seeking reliable, flexible telephony solutions. ## Description The Avaya Definity nondisplay 8403 phone enhanced design and functionality make it an excellent phone for any business. The Definity 8403 comes standard with 8 fixed feature buttons, and 3 call appearance/features buttons. The multiline digital terminal is an ideal solution for Definity system customers who need flexible yet economical call-handling capabilities throughout their business. The Avaya 8403 terminal multiple line appearances provide expanded call coverage and other advanced voice communications. For example - one-touch access to dedicated feature buttons such as Conference, Hold, Mute, and Transfer lets your employees work faster and more efficiently. The rocker-type Volume Control easily adjusts the ring, handset, or speaker volume, and the red LED Message waiting light instantly alerts users to messages. The Feature button allows quick access – via the dialpad – to 12 additional features of the telephone system. In addition, the listen-only, built in Speaker provides convenient off-hook dialing and listening. ## Features - Compatible with all Definity PBX Phone Systems - Eight Fixed Feature Buttons – process calls easily and efficiently - 3 call appearance/feature buttons - Speakerphone, Conference, Transfer, Drop, & Hold features - Adjunct ports support headsets and other optional audio devices ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00JQKP3KC | | Date First Available | April 16, 2014 | | Is Discontinued By Manufacturer | No | | Item Weight | 3 pounds | | Item model number | 8403D02A | | Manufacturer | Lucent/Avaya | | Package Dimensions | 10.6 x 8.7 x 6.5 inches | ## Product Details - **Brand:** Lucent - **Caller Identification:** No - **Color:** Black - **Item Weight:** 3 Pounds - **Manufacturer:** Lucent/Avaya - **Multiline Operation:** Multi-Line Operation - **UPC:** 799975926193 ## Images ![Lucent/Avaya 8403 Definity Digital PBX Speaker Phone (840302DA), Black - Image 1](https://m.media-amazon.com/images/I/81C7UVI7qJL.jpg) ![Lucent/Avaya 8403 Definity Digital PBX Speaker Phone (840302DA), Black - Image 2](https://m.media-amazon.com/images/I/81WHQaaYXPL.jpg) ![Lucent/Avaya 8403 Definity Digital PBX Speaker Phone (840302DA), Black - Image 3](https://m.media-amazon.com/images/I/910FmtjCQrL.jpg) ![Lucent/Avaya 8403 Definity Digital PBX Speaker Phone (840302DA), Black - Image 4](https://m.media-amazon.com/images/I/91GsN3xvLsL.jpg) ![Lucent/Avaya 8403 Definity Digital PBX Speaker Phone (840302DA), Black - Image 5](https://m.media-amazon.com/images/I/91qnv550EXL.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/12751996-lucent-avaya-8403-definity-digital-pbx-speaker-phone-840302da-black](https://www.desertcart.pt/products/12751996-lucent-avaya-8403-definity-digital-pbx-speaker-phone-840302da-black) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-07*