Source note · Fax and T.38 in cloud calling
Cisco states that when T.38 is enabled on a Webex Calling ATA, faxes are not encrypted.
Checked 2026-09-24
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 2026-09-24
- Checked
- 2026-09-24
Sources
- Improve fax transmission with your ATA — Cisco Webex · tier 2 current vendor documentation · Improve fax transmission with your ATA; T.38 mode guidance
Cite this note
APA
WarmTransfer. (2026, September 24). Fax and T.38 in cloud calling: source note fax-t38-wxc-ata-t38-not-encrypted. WarmTransfer. https://warmtransfer.net/knowledge/claims/fax-t38-wxc-ata-t38-not-encrypted
BibTeX
@misc{warmtransfer-claim-fax-t38-wxc-ata-t38-not-encrypted,
title = {Fax and T.38 in cloud calling: source note fax-t38-wxc-ata-t38-not-encrypted},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/fax-t38-wxc-ata-t38-not-encrypted},
note = {Source note fax-t38-wxc-ata-t38-not-encrypted, checked 2026-09-24}
}