[asterisk-users] fxotune question

[Matthew Fredrickson]

John Morey wrote:
> Tilghman,
> 
> Thanks for the pointer.  I'll check this tomorrow and let you know.

Also, I would like to see the output without the "-d" flag and with the 
"-v" flag.  This will output a lot of data (the echo ratio for every 
possible coefficient setting it has tried per port).

Matthew Fredrickson

> John
> 
> On Wed, Jun 4, 2008 at 11:18 PM, Tilghman Lesher <
> tilghman at mail.jeffandtilghman.com> wrote:
> 
>> On Wednesday 04 June 2008 22:02:19 John Morey wrote:
>>> Hello,
>>>
>>> I've run fxotune at different times but continue to get what seem to be
>>> strange numbers in /etc/fxotune.conf.  It ends up with:
>>>
>>>     5=7,255,251,251,2,255,255,1,255
>>>     6=7,255,251,251,2,255,255,1,255
>>>     7=7,255,251,251,2,255,255,1,255
>>>     8=9,2,250,253,4,252,0,255,255
>>>     9=4,0,0,0,0,0,0,0,0
>>>     10=5,0,0,0,0,0,0,0,0
>>>     11=0,0,0,0,0,0,0,0,0
>>>     12=0,0,0,0,0,0,0,0,0
>>> ports 5-10 have lines hooked up to them.  The first four lines seem
>> strange
>>> when compaired to what others have posted and what ports 9 and 10 have.
>>>
>>> Also if I'm reading things right my echo ratios seem to be very
>>> high.  Running "fxotune -d -b 5 -w 1004" gives the following:
>>>     Dumping module /dev/zap/5
>>>     echo ratio = 0.1759 (1960.0 / 11145.0)
>>> Which I read to be over 17%.  This seems crazy.  Am I reading this right?
>>> Where should I start to look for problems?
>> You might check to see if the tip and ring are reversed in your wiring.
>>  That
>> can frequently cause weird echo problems.
>>
>> --
>> Tilghman
>>
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-- 
Matthew Fredrickson
Software/Firmware Engineer
Digium, Inc.