Building a future of communications for your business since 1979

Cloud PBX Phone System provider in Columbia, Maryland, Washington DC, Fairfax, Virginia and the surrounding areasACC Cloud Phone System


Our Cloud Phone System is an affordable, all-inclusive telecommunications solution delivering advanced features and VoIP phone service over your broadband connection. Specifically designed for businesses needing

robust unified communication features without having to own or maintain an office phone system, organizations are attracted to the flexibility of paying a recurring monthly service fee based on size and usage.



ACC Telecom will design your Cloud Telephone System your way.  Our Cloud Phone System solution is completely customizable, including your music/message-on-hold, features and applications, Auto-Attendant routing, and the buttons on your business telephone.

Our virtual phone system is a perfect fit for small to mid-market companies because you choose the features and applications that work for your budget, with the ability to increase or decrease features immediately based on the needs of your small to medium business.



ACC Cloud Phone System provides you the tools and features you need to enhance your business for improved growth and success. Utilize countless options to take your business to the next level with a wide variety of inherent features such as Find-me Follow-Me, Conference Bridges, Mobile solutions, Business Continuity, and more.  View our full feature set here.

Provide your valuable customers with quality of assurance by utilizing our full-blown Call Center, Call Recording, and Automatic Distribution (ACD) software. Managers will appreciate the detailed statistical reports on activity and performance for each agent or per queue, such as answered and abandoned calls and incoming calls per DID.


ACC Cloud phone system mobile applications


  • Advanced Call Routing & Management
  • Auto Attendant
  • Call Center & Call Recording
  • Conference Bridges
  • CRM integration
  • Disaster Recovery
  • Mobile Application & Softphones
  • Music or Messaging on Hold
  • Online Admin Portal
  • Unified Communications including Voicemail to Email & Text Message
  • Virtual Faxing (Fax via Email)





ACC’s Cloud telephone system allows you to be in the driver’s seat when it involves your business phone choices.  Say goodbye to traditional systems with proprietary phones and hello to IP phone system freedom!

Now you have the ability to choose your IP phones- providing you with more control while cutting costs.  ACC’s virtual phone system supports the following phone manufacturers:

Yealink, Grandstream and Polycom IP phones supported for voip phone system


  • Aastra
  • Cisco
  • Cisco ATA’s
  • Digium
  • Grandstream
  • Panasonic
  • Polycom
  • Polycom Paging v4
  • snom
  • softphones
  • VTech
  • Yealink





 Q & A

Q: What separates ACC cloud communications from the competition?

Not all cloud telephone systems are created equally.  With failover technology and multiple data centers, our network uptime and call quality are second to none.  In 2016, we had 100% network availability, 99.99% calling services and a MOS score of 4.0 or greater 99% of the time.

Additional competitive advantages include: 1) personalized assistance and free helpdesk support without lengthy Auto Attendant prompts and hold times, 2) customized, professional installations, and on-site & remote technical support for all of your voice and data needs and 3) competitive pricing and features.

Q: I've read mixed reviews about cloud phone systems and VoIP phone service. How can you guarantee that I won't experience dropped calls, static and outages?

Cloud / VoIP phone systems are heavily reliable on network stability and bandwidth. Since VoIP calls are run over the public internet you may experience some form of quality issues from time to time.  That said, there are steps that you can take to beef up your network, such as MPLS, firewalls, increasing bandwidths speeds, choosing the right Internet provider, and verifying all computers are free of viruses and malware.  We also recommend performing a complete network assessment to verify your network is ready for VoIP technology prior to installation.  

Q: What happens if I lose my Internet connection?

All cloud-based applications rely on Internet connectivity, but with a cloud PBX solution, when you lose your broadband connection your communication infrastructure remains available. In other words, your Internet connection is no longer a single point of failure. When your PBX resides in the cloud, you're provided with a plethora of call routing options. For example, our virtual PBX includes features like find-me-follow-me, voicemail to email, and all calls have the ability to be automatically forwarded and routed to virtually any person, device or location. Plus, we will architect a redundant broadband solution with multiple seamless Internet connections, cutting your costs.

Q: Do I need a new or alternate Internet connection?

You do not need a second Internet connection for business resiliency; however, a second Internet connection or MPLS is recommended, as it provides a great way to further solidify your network solution.

Q: Is your VoIP platform secure against Call Hacking?

Yes, our VoIP phone system technology has additional protocols in place to protect your VoIP account from PBX Fraud.
Real-time PBX Fraud monitoring with the ability to require a PIN code to place international calls or international calling can be disabled completely is included in your hosted VoIP phone system for no extra cost. You can also restrict international calling on certain hours or days from your online portal.

Q: Which Carrier does the platform utilize?

The benefit of our VoIP Telephone System platform is that you'll never have to deal with a traditional, long distance Carrier again. We manage all Carrier connectivity in the cloud, with 'cross-connects' directly to the PSTN. Our platform includes connectivity to multiple carriers for redundancy purposes, so no single Carrier issue will impact your business. Our Carriers are chosen and maintain favor with us based on their reliability and costs.

Q: Do you recommend performing Network Assessment prior to installation?

We absolutely recommended performing a network assessment prior to VoIP installation. ACC Telecom’s Advanced Network Assessment Tool focuses on TCP and UDP network topology to provide accurate and objective testing of voice quality on modern telephony networks such as IP. And since no two companies are the same, ACC Telecom’s VoIP Network Assessment will be custom-tailored to fit your anticipated applications and usage.

Our dedicated RiPi3 hardware and software collect data securely to analyze simulated voice traffic over your data network to measure key attributes that affect VoIP call quality including TCP bi-directional, UDP calling tests, UDP capacity, concurrent, simulated phone calls, network stability, delay, jitter, packet loss, Carrier HOPS, PING, End Mapping and Traceroutes.

Following the assessment, you will be presented with a report detailing the collected data with any suggestions to improve your network performance. A post-test assessment will also be performed following your VoIP installation.

Q: Is your Cloud PBX System as feature rich as traditional PBX systems?

Yes, our Cloud Phone System includes features most organizations could not afford with their existing phone system. You now have the ability to manage these great features via our easy to use web interface, with no expertise needed. You'll be able to access carrier-class scalability, and API-extensible apps such as or Outlook, providing you with a simple solution for all of your communication needs.

Q: How does VoIP phone system costs differ from traditional phone systems?

Our hosted (cloud) phone system does not require large upfront investments like traditional phone systems. Switching to VoIP technology will reduce your operator upfront and over time by eliminating costs such as per user licensing fees, ongoing maintenance, software packages and simple admin changes.  This means your expenses are actually reduced.  Our platform is continually updated to provide your business with new, enhanced capabilities and features- ensuring your business is always on the cutting edge of Virtual PBX technology.




Cloud phone system solutions for Maryland, Washington DC, Virginia businesses and beyond

Learn more about ACC Telecom’s Cloud PBX and VoIP solutions.

Please contact us to learn more about our Cloud phone system for businesses or how you can try our VoIP service for free.  

ACC Telecom is centrally located in Columbia, MD to conveniently support business phone systems throughout Maryland, Washington DC, and Northern VA.

ACC Telecom
8335 Guilford Road, Suite H Columbia, MD 21046
Phone: 410-995-0101