BTI Communications Group, Chicago IL

Communication is Our Business

Call us at 800.HELP.BTI

Contact Us

Founding Office

15700 W 103rd St, Suite 110
Lemont, IL 60439
Map and Directions

Phone 312.432.5300
Fax 312.492.2610
Toll Free 800.HELP.BTI

24 Hour Operations and Data Center - Arizona

615 N 48th St, Suite 1048
Phoenix, AZ 85008
Map and Directions

Phone 602.492.9465
Toll Free 800.HELP.BTI

Southern California

12145 Mora Drive Suite 9
Santa Fe Springs, CA 90670
Map and Directions

Phone 562.298.5000
Fax 562.298.5070
Toll Free 800.HELP.BTI

National Sales

800.435.7284- Option 3

National Support

Support Hours 6am - 5pm PST
After Hours 800.435.7284- Option 7

General Information

General Inquiries
Employment Related Inquiries
Questions/Comments Regarding Site

Company Holidays- New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Day After Thanksgiving, Christmas Day.

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BTI at a Glance


1985 Chicago, Illinois


Enterprise businesses with multiple locations and high volume voice, data, networking and security requisites.

Key Executives

Spanning over 35 years of strategic management experience in the Technology and Telecommunications industries.


  • 15700 West 103rd St.
  • Suite 100
  • Lemont, IL 60439


  • Southern California
  • Illinois
  • Minnesota
  • Arizona