README, UPGRADE.txt, system.conf.sample: Add documentation for using HWEC

Update documentation to the effect that HWEC is not enabled by default
and must be enabled manually if desired via "echocanceller" in system.conf.


git-svn-id: http://svn.astersk.org/svn/dahdi/tools/trunk@9528 17933a7a-c749-41c5-a318-cba88f637d49
This commit is contained in:
Kinsey Moore
2010-12-09 22:44:52 +00:00
parent d3d246b656
commit 249baf1db3
3 changed files with 10 additions and 8 deletions

View File

@@ -312,10 +312,11 @@ defaultzone=us
# cancellers are compiled and installed as part of the dahdi-linux package.
# You can specify in this file the echo canceller to be used for each
# channel. The default behavior is for there to be NO echo canceller on any
# channel, so it is very important that you specify one here if you do
# not have hardware echo cancellers and need echo cancellation.
# channel, so it is very important that you specify one here.
#
# Valid echo cancellers are: mg2, kb1, sec2, and sec.
# Valid echo cancellers are: hwec, mg2, kb1, sec2, and sec.
# 'hwec' is a special echo canceller that should be used if hardware echo
# cancellation is desired on and available on the specified channels.
# If compiled, 'hpec' is also a valid echo canceller.
#
# To configure the default echo cancellers, use the format: