BUSINESS TELECOMMUNICATION SYSTEMS LLC
Corona, California · Serves Southern California and nationwide
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From their website
Designs, installs, and supports voice and IT systems for businesses and public sector organizations. It has served its community since 1981 and offers phone systems, Microsoft Teams, managed IT, and network services.
- Phone Systems
- Enterprise Cloud Systems
- Microsoft Teams
- Managed IT Solutions
- Access Controls
- CCTV
- Trade
- Low Voltage Systems Contractor (C-7)
- City
- Corona
- Works on
- Commercial
From their website - In business since
- 1981
From their website - Phone
- Shown once the owner claims
- Website
- www.bts1981.com
Name, city and trade from California public records. The rest comes from the business's own website (checked 2026-10-21) and hasn't been confirmed by the owner. Check this license on the state's license lookup (CSLB) before you sign. Wrong business or details? Tell us and we'll fix or remove it.