[VoIP] Asterisk-Adtran dial rate

[ikjtel]

Kirt

The "PULSEAFTERTIME" is merely the interdigital delay
value.  You'll need to actually change the PULSEMAKE
and PULSEBREAK ones, which I believe are directly in
milliseconds.  

Also, should have asked this last time, does the
Varian card use stock drivers, or does it include its
own proprietary drivers?

If absolutely necessary to prove whether the values
are getting overridden by unknown actors, a 'printk'
could be added to print out the actual values in
effect...

Max

--- Kirt Stanfield <kirtley.stanfield at comcast.net>
wrote:

> 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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