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Business Phone Service Providers Gaithersburg MD

Serving Gaithersburg, Maryland Business Telecommunications Since 1979

ACC Telecom has over three decades of communication and telecommunication experience in Gaithersburg, MD, Washington, D.C., Northern Virginia, and the surrounding areas.

Telecommunications products and services including IP phones, conference room phone, video conferencing services, cordless SIP phones.

The Industry has Evolved. Your Phone Service & PBX System Should too.

Specializing in Voice, VoIP, Data, Video, and Security

ACC Telecom specializes in small, medium, and large business telephone systems in the Gaithersburg, MD area and serves all of Maryland, Washington DC and Northern VA (NoVA). For over 35 years, ACC Telecom has assisted companies of all sizes with their voice, data, & firewall security needs, including business phone service (SIP Trunks), virtual phone system and PBX applications, IP surveillance camera system, SD-WAN & network security scanner, and building data and phone cabling. Our comprehensive solutions are backed by our 90-day satisfaction guarantee and include free help desk support.
We are a certified 3CX and ESI provider of on-premise digital and IP phone systems and offer our very own ACC Cloud-based phone system (Virtual PBX) with VoIP service (SIP Trunking). Our cloud-based phone system includes voicemail, auto attendant, music on hold (MOH), video conferencing services, unified communications, voicemail to email, voicemail transcription, Hosted fax, call accounting, user portal, PBX hacking prevention, busy signal prevention and so much more. Our sales engineers will customize your phone system to your specifications so you only pay for what you need.

ACC Telecom Products and Services Include:

Business Phone Systems

  • ACCloud, 3CX, ESI
  • Hosted PBX
  • IP PBX Servers
  • Virtual Servers
  • Key Telephone System
  • Cloud Server Configuration
  • 4 line to multi-line business phone systems

Phone Service

  • Cloud based phone system
  • Voice over IP (VoIP)
  • SIP Trunk
  • Carrier Services
    • PRI/T1 services, Point-to-Point T1
    • COAX
    • Internet and TV
    • SIP
    • Local calling / International Calling / Long Distance Phone Service
    • POTS / Analog landlines,
    • Fax / Virtual / Hosted eFax
    • MPLS networks, Local & Nationwide Networking
    • Conference Call Services


PA Systems

PBX Applications

  • Business Call Recording
  • Business SMS
  • Call Center solutions
  • Call Accounting software
  • ACD (Advanced Call Distribution)
  • Web based Video Conferencing
  • Video Conferencing
  • IVR (Interactive Voice Response)
  • Auto Attendant / Virtual Receptionist
  • Voicemail, Voicemail to email, Voicemail Transcription
  • Call Manager
  • Click to Call
  • Unified Communications
  • Enterprise Mobility Applications (EMAs) / Mobile APP Clients for PBX
  • Softphones / Soft PBX
  • Internal Chat
  • Line appearance / Presence
  • QoS Monitoring



  • Wireless & Mobility Apps
  • Teleconference Equipment
  • Secure Communications
  • Door Access Control Systems
  • Headsets
  • Local Telecom Support and Service
  • Free Help Desk Support to all customers 



Please visit our website for a full list of our solutions and applications- and check out our small business phone system reviews under our testimonials section. Contact ACC Telecom today by calling 410-995-0101 or 888-226-216 for your complimentary consultation.

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