Source note · Moving from Unified CM to Zoom Phone
A Zoom Phone SBC setting enables T.38 negotiation for fax calls; when it is disabled, fax calls use G.711 passthrough only.
Checked 2026-09-25
- Vendor
- Zoom
- Product
- Zoom Phone
- Subsystem
- SBC configuration, fax
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- BYOC-P or BYOP-P configuration guide — Zoom Communications · tier 2 current vendor documentation · SBC settings, 'Use T.38 protocol for faxing'
Cite this note
APA
WarmTransfer. (2026, September 25). Moving from Unified CM to Zoom Phone: source note cucm-to-zoom-phone-t38-option. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-zoom-phone-t38-option
BibTeX
@misc{warmtransfer-claim-cucm-to-zoom-phone-t38-option,
title = {Moving from Unified CM to Zoom Phone: source note cucm-to-zoom-phone-t38-option},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-to-zoom-phone-t38-option},
note = {Source note cucm-to-zoom-phone-t38-option, checked 2026-09-25}
}