Communications Services, Inc.
- Provider of voice and data networking solutions, systems integration and support by skilled technicians in Colorado. Castle Rock
- http://www.coloradocsi.com/

Telecom Matters Corp.
- Information about the Asterisk PBX software and how to build an economical telephone system. Evergreen
- http://www.telecommatters.net/

Valucomm Technologies Inc.
- Specializes in sales and service for new and refurbished telephone and voice mail systems.
- http://www.valucomm.net/

Hi Country Wire and Telephone
- Offers business phone systems, voice mail and long distance for large and small offices.
- http://www.hcwt.com/

Straticomm Inc.
- Providing sales, service and installation for new, used and refurbished business phone systems. Englewood
- http://www.straticomminc.com/

Synergy Telecom
- Company that specializes exclusively in NEC phone and voice messaging products. Denver
- http://www.synergytelecom.net/

RAIN Technologies
- Providing voice and data technology. Wire, cable, computers, phone systems and voicemail. Colorado Springs
- http://www.coloradorain.com/

United Telephone Co.
- Specializes in sales and service for new and refurbished phone systems. Aurora
- http://www.utcdenver.com/

PeAk Communication Systems
- Sales and service of phone systems. Colorado Springs
- http://www.gopeak.com/

Boulder Phone Installers, Inc.
- Sell, install and service Vodavi telephone systems. Serving the Hwy 36 corridor for commercial networks, data, modem and voice cabling and testing. Boulder
- http://www.boulderphoneinstallers.com/

Mountain States Telecom
- Providing smart, affordable communications technology in and around Colorado Springs.
- http://www.mstele.com/

Business Telephone Equipment
- Sales and service nationwide on Lucent systems.
- http://www.businesstelephone1.com/