Avaya J-Series Phones
Effective phone communication is essential for a successful business, and a secure, feature-rich system with crisp audio quality helps you connect with partners, vendors, customers and clients.
At Advanced Communication Systems (ACS), we’re proud to offer Avaya J-series phone systems, a trusted option in business communication. With robust features and quality builds, these Voice over Internet Protocol (VoIP) phone systems deliver excellent performance for businesses and enterprises, backed by ACS’s tailored end-to-end services.

Introducing the Avaya J-Series
Our Avaya J-series phones meet virtually every business’s needs:
J129
The J129 is an affordable Session Initiation Protocol (SIP) phone for internet-based voice calls, with no analog needed. Intuitive to use, the J129’s compact design suits wall and desk setups, maximizing space. A one-line phone that can support two concurrent calls, this phone system comes with multiple features, including an easy-to-read digital display and three soft keys.
J139
This Avaya J-series desk phone lets you personalize your phone system while enjoying all the features necessary for effective communication. Wideband audio codec reduces background noise for better-sounding audio, while four duo-color LED buttons make task management simple. A color display lets you easily manage calls, and you experience full-duplex audio with built-in audio boost.
J159
With a small footprint, the multi-line Avaya J100 series IP phone features two color displays for productivity as well as support for Wi-Fi connectivity and wideband and duplex audio for high call quality. Personalize your user interface and use fixed keys for high-speed calling. This phone offers support for up to 96 total buttons, including dedicated keys for key functions like messages, contacts, headset and volume.
J179
Perfect for larger businesses, the eight-line J179 offers HD audio, a color display, Gigabit Ethernet, and optional Wi-Fi®/Bluetooth®. Create a scalable communications ecosystem by integrating the phone with Avaya Aura®, IP Office™ or Avaya Cloud Office® to take advantage of additional functionality. Connect to up to three optional Avaya J100 Expansion Modules, each offering 24 added buttons for high-volume and high-speed calling.
J179-TSG
Certified for secure operations, this model is Telecommunications Security Working Group (TSG)-6 approved (with TSG certification for both Class A and B) and recognized for U.S. Committee on National Security Systems (CNSS) deployment. It delivers many of the features of the J179, making it ideal for government contractors, agencies and other businesses who need added layers of security with powerful phone features.
J189
J189 has two color displays, high definition audio and 16 feature keys. Its second screen functions as an Expansion Module for added capacity. Take advantage of headset support and optional Wi-Fi®/Bluetooth® connectivity to support busy remote teams.
J100 EM
The Avaya J100 Expansion Module enhances your experience with the Avaya IP J179 Phone by providing access to 24 additional buttons. This allows the user to see more incoming and outgoing calls for a variety of applications.
Featured Client Success Stories
"Having had exposure to ACS at other companies, I was delighted to see that the company commitment, passion and drive for excellence is still thriving." - American Cancer Society
Fantastic installation by ACS! You made it easy for us to ensure that everything runs smoothly with our new Avaya system. Very professional, very helpful and always there when we need you. - Allstate Insurance
It was terrific to work with an organization that was able to adapt to our needs so readily and effectively. Your installers were exceptional and showed a willingness to ensure that all users had a good understanding of the new phone system. - Harris Teeter
We cannot thank you enough for the dedication and professionalism displayed by your entire team. The new phone system installation and training was a big success. All promises met and delivered. Thank you for all of your efforts. - Mitsubishi Industries
The service your company provides is top quality – from initial request for info, to the proposal and execution. You understood our unique requirements and improvised when requested. Raytheon - Raytheon
Contact Us to Explore Your Avaya Phone Options
Many Avaya J-series phone systems include advanced features that keep your team productive and connected. Rely on our experienced team to recommend the best Avaya business phones for your needs. We provide comprehensive support, from training and planning to 24/7 assistance post-migration.
ACS has served more than 5,000 clients with end-to-end telecom solutions and holds an A+ BBB rating. Connect with us today for fully customizable and scalable Avaya enterprise phones.