Avaya Business Phone Systems — Certified Avaya
Advanced Communication Systems (ACS) is the nation's leading certified Avaya business partner — delivering Avaya phone systems to businesses of all sizes, from small professional offices to large multi-site enterprises and government agencies. With 25+ years of experience and 5,000+ clients served, ACS brings deep expertise in designing, installing, and supporting Avaya communication solutions nationwide.
Whether you're shopping for a new Avaya system, replacing a legacy system, or looking to migrate from on-premise to the cloud, ACS is your single point of contact for the complete Avaya product portfolio — backed by Avaya-certified engineers and award winning 24/7 technical support.

Avaya IP Office — Built to Scale With Your Business
Avaya IP Office is the flagship business phone platform for small to mid-sized organizations. It unifies voice calling, video, messaging, and collaboration in a single platform — and it's available in three deployment models to fit your infrastructure, budget, and growth plans.
Avaya IP Office Features
- Auto attendant with customizable call routing trees
- Voicemail to email and visual voicemail
- Call recording and real-time reporting dashboards
- Video conferencing and screen sharing
- Mobile and remote worker support — full features on any device
- CRM integration with Salesforce, Microsoft Dynamics, and others
- Contact center capabilities for customer-facing teams
- Presence and instant messaging across desktop and mobile
Deployment Options
On-Premise: Avaya IP Office hardware installs at your location, giving you full control over your system and no dependency on internet connectivity for internal calls. Best for organizations with dedicated IT resources and specific security or compliance requirements.
Avaya Cloud: All calling and collaboration features are delivered from the cloud with no on-site hardware required. ACS manages the platform, handles all updates, and provides 24/7 support. Ideal for businesses looking to eliminate capital equipment expense and simplify IT overhead.
Hybrid: Combine an on-premise IP Office system with cloud-hosted extensions — giving remote and mobile workers the same full-featured experience as those in the office. The right choice for distributed teams or businesses transitioning to the cloud on their own timeline.
Avaya J-Series IP Deskphones
From the compact J139 entry-level model to the executive J189 with a color touchscreen and built-in Bluetooth, the Avaya J-Series lineup delivers exceptional audio clarity and an intuitive user experience at every desk. Every J-Series device integrates natively with Avaya IP Office, giving your team full access to system features — call forwarding, conferencing, presence indicators, and more — directly from the handset.
How Much Does an Avaya Phone System Cost?
Avaya IP Office pricing depends on the number of users, deployment model (on-premise, cloud, or hybrid), features required, and hardware. As your certified Avaya partner, ACS provides transparent, competitive pricing with no hidden fees or surprise charges.
We offer free, no-obligation consultations and custom quotes so you understand exactly what you're getting before you commit. Contact our team to discuss your requirements and receive a detailed proposal within 24 hours.
Why Partner With ACS?
Foster greater communication, collaboration and accountability with a reliable Avaya business phone — configured for your team's exact needs. As your Avaya provider, we're committed to helping you keep your team members connected in diverse environments. We offer:
Decades of industry experience
Our company has provided phone products and services since 1998, standing out among certified Avaya business partners for our depth of expertise and customer care.
Local and nationwide support
We serve over 5,000 clients nationwide, and we're equipped to provide on-site support in select areas. Our offices are strategically located in Virginia, Maryland and Washington.

Helpful resources
We can answer your questions about Avaya cloud solutions and hybrid phone systems. Request more details about our telecommunication offerings, and review our latest blog posts for actionable tips your team can implement.

Reputable work
Our tailored strategies and world-class services have earned us an A+ rating with the Better Business Bureau. Review our success stories to see what clients say about our end-to-end solutions.

Contact Center
Avaya solutions is a worldwide leader in the contact center market. The scalable contact center solutions help businesses manage calls and improve customer service, no matter the size of your organization.

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
Our Avaya Business Phone Systems
Whether you run a five-person startup or a multi-location enterprise, our Avaya telephone systems for small business are designed to grow with you — delivering enterprise-grade features at a price that makes sense.Keep your operations running smoothly with the right Avaya phone for your business — from compact desk sets to full-featured IP deskphones designed for high-volume teams. Our dedicated service professionals can offer guidance to help you determine if the Avaya J Series Intellectual Property (IP) Deskphones are right for your business. The deskphones deliver crystal-clear audio and feature innovative, user-friendly designs to increase your staff's productivity. Some features include:

Call forwarding

Call waiting

Hold music

Call recording

Routing for both inbound and outbound calls

Call screening

Reporting to enhance customer service and efficient call handling
Each deskphone connects to Avaya IP Office, a comprehensive platform that makes it easier to manage your company's voice and video calls, messaging and collaboration tools. The platform supports remote and mobile users, enabling flexible work environments. We provide strategic planning to connect your company's computers, smartphones and dedicated VoIP phones. Our experts can offer assistance to add users and expand the system as your business grows.
Seamless Avaya Phone System Installation
As an authorized business partner of Avaya, we coordinate smooth installation and training services. Our experts work closely with your business to understand your communication requirements and plan a rollout strategy that minimizes disruptions to your operations. We provide all the resources and tools your staff needs for a successful transition.
24/7 Avaya Support Solutions
Our team of over 1,000 technicians is nationally certified to provide assistance for all Avaya products. We can answer your questions and troubleshoot issues over the phone. Our on-demand support is easy to schedule — call 866-521-4571 for quick responses or use or submit our online form.
FAQs
Q: Is Avaya IP Office the right choice for a small business?
A: Yes. Avaya IP Office is designed to scale from 5 users all the way to 3,000+ users on a single platform. Many small and growing businesses choose it specifically because it delivers enterprise-grade features — auto attendant, call recording, CRM integration, mobile support — at a price point that makes sense for a small team.
Q: What is the difference between Avaya IP Office on-premise and Avaya Cloud?
A: On-premise IP Office installs Avaya hardware at your location for full system control and local call handling. Avaya Cloud delivers the same feature set from a hosted server — no on-site hardware, no capital expense, and a predictable monthly per-user cost. ACS will help you evaluate which model fits your budget, team size, IT resources, and compliance requirements.
Q: Can ACS migrate us from an older Avaya system to the current IP Office platform?
A: Absolutely. ACS has extensive experience migrating businesses from legacy Avaya systems — including Partner, Merlin, and older IP Office versions — to the current Avaya IP Office platform. In many cases we preserve existing handsets to reduce hardware costs. We handle all configuration, data migration, and cutover to minimize downtime.
Q: What ongoing Avaya support does ACS provide after installation?
A: ACS offers managed services contracts with proactive monitoring, on-demand support, and 24/7 emergency technical assistance for all Avaya systems. Our team of nationally certified technicians can resolve most issues remotely and dispatch on-site when needed. We also provide training refreshers and system expansion services as your team grows.
Let's Start Your Digital Transformation
Searching for Avaya dealers near you? ACS serves businesses locally and nationwide, with certified technicians ready to install, support, and maintain your Avaya system wherever you're located. ACS offers Avaya telephone systems for small business through to large enterprise — on-site, cloud, virtual or hybrid solutions with advanced tools that optimize your staff's workflow.
Contact our team to get started.