CSI Telecommunications, Inc., like many companies, has migrated to the cloud with the closing of our last physical office in Novato, CA on July 31, 2025. Our engineers will continue to work with you from their homes. Their e-mail addresses and phone numbers remain the same.
Please update your records with our new mailing address:
CSI Telecommunications, Inc.
P.O. Box 635
Novato, CA 94948-0635
Telephone: 415-751-8845
