| Date Filed | Summary | Pages |
| 10/17/2023 | Case Action Form closing case with an effective date of 10/17/2023 electronically filed by Mrs. Tanika Hawkins on behalf of Public Utilities Commission of Ohio. | 2 |
| 04/07/2022 | Notice of Cancellation of Certificate No. 90-9328 effective 4/3/22. | 1 |
| 09/18/2012 | Correspondence for Call One, Inc. to change name from United Communications Systems, Inc. to Call One, Inc. filed by M. Zayas. (FAX) | 8 |
| 04/19/2011 | Request Submitted for filing is the Telecommunications Filing Form for BLES withdrawal. I was requested to include this form with our Telecommunications Application Form for Detariffing. electronically filed by Mr. Craig J Foster on behalf of United Communications Systems, Inc., dba Call One. | 5 |
| 02/18/2011 | Request to withdraw the revised Tariff pages dated January 12, 2011 and submitted by Craig J. Foster. | 1 |
| 01/14/2011 | Revised tariff pages PUCO No. 1 filed by C. Foster on behalf of United Communications Systems, Inc. d/b/a Call One. | 9 |
| 04/10/2009 | Revised tariff pages, which include the Check Sheet and Revised Pages 10, 31, 40, 46, 54, 84, 93, 94, and 95, to supplement the recently filed (Revised) UCS PUCO Tariff No. 1. electronically filed by Christine Reilly on behalf of United Communications Systems, Inc. dba Call One. | 12 |
| 03/24/2009 | In the Matter of the Application of United Communications Systems, Inc. dba Call One to Detariff Certain Tier 2 Services and make other changes to PUCO Tariff No.1, electronically filed by Christine Reilly on behalf of United Communications Systems, Inc. dba Call One. | 305 |
| 07/06/2006 | Revised certificate 90-9328 issued. | 6 |
| 06/01/2006 | Certificate 90-9328 issued. | 2 |
| 04/19/2006 | Application continued. (Part 2 of 2 ) | 121 |
| 04/19/2006 | In the matter of the application of United Communications Systems, Inc. dba Call One to provide local and interexchange communications services. (Part 1 of 2) | 101 |