Source note · Troubleshooting fax over IP failures
Disabling ECM on a Cisco fax relay dial-peer enables fax relay packet loss concealment, which tolerates about ten percent packet loss.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Cisco IOS voice gateways
- Subsystem
- ECM
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Troubleshoot Fax Relay — Cisco Systems · tier 2 current vendor documentation · ECM / packet loss section
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting fax over IP failures: source note fax-over-ip-troubleshooting-ecm-off-enables-plc. WarmTransfer. https://warmtransfer.net/knowledge/claims/fax-over-ip-troubleshooting-ecm-off-enables-plc
BibTeX
@misc{warmtransfer-claim-fax-over-ip-troubleshooting-ecm-off-enables-plc,
title = {Troubleshooting fax over IP failures: source note fax-over-ip-troubleshooting-ecm-off-enables-plc},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/fax-over-ip-troubleshooting-ecm-off-enables-plc},
note = {Source note fax-over-ip-troubleshooting-ecm-off-enables-plc, checked 2026-10-02}
}