Source note · Troubleshooting fax over IP failures
When T.38 is enabled on a Webex Calling ATA, the faxes are not encrypted.
Checked 2026-10-02
When T.38 is enabled, your faxes aren't encrypted.
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- ATA fax
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Improve fax transmission with your ATA — Cisco (Webex Help Center) · tier 2 current vendor documentation · Article body, T.38 note
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting fax over IP failures: source note fax-over-ip-troubleshooting-wxc-t38-unencrypted. WarmTransfer. https://warmtransfer.net/knowledge/claims/fax-over-ip-troubleshooting-wxc-t38-unencrypted
BibTeX
@misc{warmtransfer-claim-fax-over-ip-troubleshooting-wxc-t38-unencrypted,
title = {Troubleshooting fax over IP failures: source note fax-over-ip-troubleshooting-wxc-t38-unencrypted},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/fax-over-ip-troubleshooting-wxc-t38-unencrypted},
note = {Source note fax-over-ip-troubleshooting-wxc-t38-unencrypted, checked 2026-10-02}
}