Business Telephone Systems Inc
Interconnected Voip- Agent for service of process
- Bill Havre, Registered Agents Inc, 1717 N Street NW, Suite 1, Washington, DC, 20036
- Agent phone / fax
- (202) 403-0599
- Agent email
- [email protected]
- Headquarters
- 3924 W. Devon Ave, Suite 100, Lincolnwood, IL, 60712
- Customer inquiries
- (980) 325-0770
- Holding company
- —
- States served (1)
- Illinois
- FCC 499 Filer ID
- 838730
- Last filing
- 4/1/2026