Summit utilizes the industry's most reliable digital bridges co-located in three telephone centers throughout the United States. We currently have more than 20,000 ports of capacity with approximately 60% available during the busy hour, ensuring 24 hour a day availability, 365 days a year.

Our company is headquartered on Whidbey Island, near Seattle, WA

Summit Conference Service Inc.
PO BOX 1680
Coupeville WA 98239-1680

Telephone: 800-906-4290 Option 1
Email: info@summitconference.com