Source note · Setting up analog devices and ATAs on Webex Calling
By default an ATA on Webex Calling sends faxes with T.38 mode disabled, and in that default mode the fax stays encrypted between the ATA and the Webex Calling service.
Checked 2026-09-30
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- fax
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-30
- Checked
- 2026-09-30
Sources
- Improve fax transmission with your ATA — Cisco (Webex Help Center) · tier 2 current vendor documentation · introductory paragraphs
Cite this note
APA
WarmTransfer. (2026, September 30). Setting up analog devices and ATAs on Webex Calling: source note webex-calling-analog-ata-setup-t38-default-off. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-calling-analog-ata-setup-t38-default-off
BibTeX
@misc{warmtransfer-claim-webex-calling-analog-ata-setup-t38-default-off,
title = {Setting up analog devices and ATAs on Webex Calling: source note webex-calling-analog-ata-setup-t38-default-off},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/webex-calling-analog-ata-setup-t38-default-off},
note = {Source note webex-calling-analog-ata-setup-t38-default-off, checked 2026-09-30}
}