asterisk/configs/samples/chan_dahdi.conf.sample

Publisher

Asterisk project (Sangoma)

URL

https://github.com/asterisk/asterisk/blob/master/configs/samples/chan_dahdi.conf.sample

Published

unknown

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

GPL-2.0 (Asterisk); short excerpts and locators only

Source notes citing this source

• The Asterisk chan_dahdi echotraining option mutes the channel briefly, sends an impulse to pre-train the canceller (default delay 400 ms), and the sample warns it can make echo worse in some cases. in context
• 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. in context
• The Asterisk chan_dahdi sample says it is generally unnecessary and undesirable to echo cancel when the circuit path is entirely TDM; echocancelwhenbridged overrides this. in context
• In Asterisk chan_dahdi, echocancel accepts yes, no, or a power of two from 32 to 256 taps, and taps divided by 8 gives milliseconds, so 256 taps is 32 ms. in context

Cite this source record

APA

WarmTransfer. (2026, September 25). asterisk/configs/samples/chan_dahdi.conf.sample. WarmTransfer. https://warmtransfer.net/knowledge/sources/github-asterisk-chan-dahdi-conf-sample

BibTeX

@misc{warmtransfer-github-asterisk-chan-dahdi-conf-sample,
  title  = {asterisk/configs/samples/chan_dahdi.conf.sample},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/github-asterisk-chan-dahdi-conf-sample},
  note   = {Asterisk project (Sangoma), accessed 2026-09-25}
}