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Business Phone Service Providers Rockville, MD

Serving Rockville, Maryland Business Telecommunications Since 1979

ACC Telecom has over three decades of communication and telecommunication experience in Rockville, 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


You expect the best from your Rockville, MD telecommunications company and at ACC Telecom we make it a priority to deliver exceptional customer service and support for all of your voice, data, and security needs.  Whether your Rockville, Maryland business requires telephone service, or multi-location business phone system networking to telecommunications, video surveillance, and network security integration- ACC will handle it all.  Our staff is equipped with the latest certifications and technology to provide customized business telecommunication solutions and support.  For over three decades ACC Telecom has served Rockville, Maryland, Northern Virginia, and the Baltimore-Washington Metropolitan area.


Our Specialties Include:

Business Phone Systems

  • ACCloud, 3CX, ESI
  • Hosted PBX
  • IP PBX Servers
  • Virtual Servers
  • Digital PBX
  • Cloud Server Configuration

Phone Service

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


PA Systems

PBX Applications

  • Business Call Recording
  • Business SMS
  • Call Center software
  • Call Accounting software
  • ACD (Advanced Call Distribution)
  • Web Conferencing Solutions
  • 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
  • Softphones
  • Internal Chat
  • Line appearance / Presence
  • QoS Monitoring



  • Wireless & Mobility Apps
  • Conference Room Solutions
  • Secure Communications
  • Door Access Control Systems
  • Headsets
  • Telecom Support and Service
  • Free Help Desk Support to all customers 


ACC Telecom offers various types of business telephone line and voice over IP phone system for businesses in Rockville, MD.  Our specialties include 4 line business phone system options to multi-line phone system and enterprise grade IP PBX solutions.  Let us help you decide which phone system and business phone plans are right for your business.  Contact us today for your free consultation!