General Inquiries
Contact our corporate headquarters for additional information on our company and our subsidiaries.
Corporate Inquiries
14910 Grover, Suite 300
Omaha, NE 68144-5445
Local: (402) 597-3333
National: 1-800-824-1636
Fax: (402) 597-3577
Email: info@1csi.com
Sales Inquiries
Let our sales representative’s help you choose a communications solution that's right for your business
Local: (402) 597-3333
National: 1-800-824-1636
Email: sales@1csi.com
Fax: (402) 597-3577
