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

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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
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4
README
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@ -106,7 +106,9 @@ channels, and send it to the kernel.
A sample annotated system.conf is included in this directory and A sample annotated system.conf is included in this directory and
installed by default. Edit it to suit your configuration. Alternatively installed by default. Edit it to suit your configuration. Alternatively
use the script dahdi_genconf to generate one that should work with your use the script dahdi_genconf to generate one that should work with your
system. system. Note that while dahdi_genconf will generate a working configuration,
it will not automatically detect hardware echo cancellation modules. These
will have to be enabled manually in system.conf.
/etc/dahdi/init.conf /etc/dahdi/init.conf
~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~

7
UPGRADE.txt
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@ -62,10 +62,9 @@ Any or all of these modules can be loaded at the same time, and the echo
canceler to be used on the system's channels can be configured using canceler to be used on the system's channels can be configured using
the dahdi_cfg tool from the dahdi-tools package. the dahdi_cfg tool from the dahdi-tools package.
IMPORTANT: It is *mandatory* to configure an echo canceler for the IMPORTANT: It is *mandatory* to configure an echo canceler for the system's
system's channels using dahdi_cfg unless the interface cards in use channels using dahdi_cfg. There is *no* default echo canceler with DAHDI, not
have echo canceler modules available and enabled. There is *no* even hardware echo cancellation modules. See
default software echo canceler with DAHDI. See
<<_echo_cancellers,section on echo cancellers>> in sample system.conf. <<_echo_cancellers,section on echo cancellers>> in sample system.conf.

7
system.conf.sample
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@ -312,10 +312,11 @@ defaultzone=us
# cancellers are compiled and installed as part of the dahdi-linux package. # 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 # 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. 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 # channel, so it is very important that you specify one here.
# not have hardware echo cancellers and need echo cancellation.
# #
# 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. # If compiled, 'hpec' is also a valid echo canceller.
# #
# To configure the default echo cancellers, use the format: # To configure the default echo cancellers, use the format: