Source note · Fax and T.38 in cloud calling
Cisco says the fax transport method must be consistent end to end across the originating gateway CUBE and terminating gateway path.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco Unified Border Element
- Subsystem
- fax interworking
- Deployment
- on-premises
- Region
- not restricted
- Release range
- IOS 15.x era (2013 tech note)
- Checked
- 2026-09-24
Sources
- CUBE Third-Party Interoperability Fax Guidelines — Cisco · tier 2 current vendor documentation · Background Information and CUBE Configuration sections
Cite this note
APA
WarmTransfer. (2026, September 24). Fax and T.38 in cloud calling: source note fax-t38-cube-end-to-end-consistency. WarmTransfer. https://warmtransfer.net/knowledge/claims/fax-t38-cube-end-to-end-consistency
BibTeX
@misc{warmtransfer-claim-fax-t38-cube-end-to-end-consistency,
title = {Fax and T.38 in cloud calling: source note fax-t38-cube-end-to-end-consistency},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/fax-t38-cube-end-to-end-consistency},
note = {Source note fax-t38-cube-end-to-end-consistency, checked 2026-09-24}
}