[VoIP] Asterisk-Adtran dial rate

[Kirt Stanfield]

Max,

I changed 'ZT_DEFAULT_PULSEAFTERTIME' to 900, rebuilt everything, and 
rebooted. I see no change in the PPS. Also m/b has always dispalyed as 60/40

So I suspect these are in fact being overidden somewhere.

Kirt
ikjtel wrote:

>Replying on-list in the event that anyone else has
>commentary to add.............
>
>I believe there may be two separate issues here. 
>First, the parameters you mention should be tweakable
>via zaptel.h, specifically
>zaptel.h:#define        ZT_DEFAULT_PULSEMAKETIME 50   
> /* 50 ms of line closed when dial pulsing */
>zaptel.h:#define        ZT_DEFAULT_PULSEBREAKTIME 50  
> /* 50 ms of line open when dial pulsing */
>zaptel.h:#define        ZT_DEFAULT_PULSEAFTERTIME 750 
> /* 750ms between dial pulse digits */
>
>[Note, it is theoretically possible for user-space
>(ztcfg) to override these, although I don't believe
>this is currently implemented]
>
>[Note 2, I believe that these values are not correct
>for true Bell System dials, the ratio should be ~60/40
>not 50/50]
>
>The second issue is that several users have reported
>erratic pulsing, which I have noticed too, just by
>listening the problem is clearly audible.  Instead of
>hearing regularly spaced pulses you hear plainly that
>the spacing is irregular.
>
>Try connecting a butt set (in monitor mode) to the
>connection and listen to the outpulsing.   Best way to
>test this is to use a string of several 'zero'
>digits...
>
>I recently was able to grab an FXO card for my channel
>bank.  When it shows up (and when I get it set up)
>I'll try to duplicate the problem.  I have released an
>asterisk dial speed app that will also help pinpoint
>it.  See URL
>
>http://www.lightlink.com/mhp/dialtest/
>
>Max
>
>--- Kirt Stanfield <kirtley.stanfield at comcast.net>
>wrote:
>
>  
>
>>Max,
>>
>>I hope all is well with you.
>>
>>Early this year I installed a Varian T1 card in my
>>asterisk machine, and 
>>connected it to an adtran channel bank. The channel
>>bank has 5 FXS cards 
>>and 1 FXO card. The former is connected to ground
>>start 2 way trunks on 
>>my step switch. The latter is connected to the
>>incoming selectors on my 
>>step switch.
>>
>>In general the above configuration has performed
>>well, with a tremendous 
>>improvement in voice quality.
>>
>>I have however seen evidence of misdialing into the
>>switch via the FXO 
>>card. I finally wrote a php script to dial over and
>>over again, and from 
>>that I have deduced that there is about a 5-10%
>>misdial rate. I have now 
>>place a Metro-Tel TPM32  'digit grabber' in the
>>circuit. That indicates 
>>that dialing is taking place at a rate of 13pps,
>>instead of 10pps, which 
>>I suspect is the reason why I am seeing the error
>>rate that I am.
>>
>>So my question is - can you tell me any place(s) in
>>the asterisk or the 
>>drivers that I could adjust so as to slow down the
>>dial rate?
>>
>>Thanks,
>>Kirt
>>
>>
>>    
>>
>
>
>
> 
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