User manual

Release 1.01 Digium, Inc. Page 41
Chapter 5: Troubleshooting
Check the current mode using this command:
hdparm -vi /dev/[IDE Device]
Use this command to set the drives into UDMA2 mode:
hdparm -d 1 -X udma2 -c 3 /dev/[IDE Device]
If you are still having problems, contact your reseller from which the
card was purchased, or Digium Technical Support at
1.877.LINUX.ME (1.877.546.8963).
There is a slight echo. How can I adjust the sound quality?
There are several options available to correct this. Each involves editing
the
zapata.conf file. Be sure to restart Asterisk upon completion.
1. Adjust
echocancel=yes to one of the following values: 32, 64, 128,
or 256
.
2. You can also set
echotraining=yes.
3. You can also adjust the
rxgain and the txgain, although it is only
recommended to shift between -5 and 5.
How can I enable more features?
Use hdparm with caution as the man page states that hard drive
corruption can occur when using incorrect settings. Please
review the man page for hdparm and make sure you understand
the risks before using this tool.
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