10640 E. Bethany Dr. Suite D

Aurora, CO 80014

Fax: 303.752.3561




Contact United Telephone Co. About United Telephone Co. Article about United Telephone Co. Partner ACS System Features United Telephone Co. Home Page

Providing High Quality Telephone Systems Since 1980


United Telephone Co. specializes in new and refurbished phone systems for AT&T/Avaya.


80% of our sales and service are for AT&T/Avaya systems including:

  • Partner Advanced Communications System (ACS)
  • Merlin Legend
  • Merlin Magix

We service, move and expand most makes of new and refurbished business phones including Inter-tel, Panasonic, Vodavi and more.


We also supply interconnect equipment in Colorado and nationally on an emergency parts basis.

Partner ACS System,  MLS 12d phone

United Telephone Co. has built it's reputation on customer service and lowest prices. We service our own clientele of approximately 600 clients. We also offer service to company's where the original provider is no longer in business or is offering unsatisfactory service.


You can trust us to take care of your new or refurbished phone system needs. If we don't have the expertise in-house we will happily refer you to one of our associate companies.

New and Refurbished Phone Systems for every business, every budget.

Main Office & Showroom

10640 E. Bethany Dr. Unit D

Aurora, CO 80014



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