Source note · Echo on VoIP calls
The Asterisk chan_dahdi sample says a hardware echo canceller takes precedence when present, and numeric echocancel values are treated as yes on hardware-equipped cards.
Checked 2026-09-25
- Vendor
- Asterisk
- Product
- chan_dahdi
- Subsystem
- echo-canceller-defaults
- Deployment
- on-premises
- Region
- not restricted
- Release range
- master branch as of 2026-09-25
- Checked
- 2026-09-25
Sources
- asterisk/configs/samples/chan_dahdi.conf.sample — Asterisk project (Sangoma) · tier 3 vendor-maintained repositories · chan_dahdi.conf.sample, echocancel comment block
Cite this note
APA
WarmTransfer. (2026, September 25). Echo on VoIP calls: source note echo-on-calls-dahdi-hwec-precedence. WarmTransfer. https://warmtransfer.net/knowledge/claims/echo-on-calls-dahdi-hwec-precedence
BibTeX
@misc{warmtransfer-claim-echo-on-calls-dahdi-hwec-precedence,
title = {Echo on VoIP calls: source note echo-on-calls-dahdi-hwec-precedence},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/echo-on-calls-dahdi-hwec-precedence},
note = {Source note echo-on-calls-dahdi-hwec-precedence, checked 2026-09-25}
}