asterisk users - Nov 2010 - Funky IAX behavior between 1.4 and 1.8

Hi Gang,

             My production box with my DAHDI cards is a 1.4.26 build.  I
have 3 test machines that I do IAX communication with.

Machine 1 is a real Dell POWEREDGE 1500 running CENTOS running 1.4.30.
Machine 2 is a SUSE 11.1 VM running 1.4.30.  Machine 3 is another SUSE 11.1
VM running 1.8.0.   I can SIP into all 4 machines and life is great.  When I
try to IAX from the live machine to Machine 3, I get lags/pauses on
Background/Playback commands.  I play files and groups of files that last
from 1-45 seconds, so I can press keys and proceed, but I don't expect my
end-users to know to do this.  Any clues?  Do I need to open a tracker issue
on this one?

 

Thanks

Danny Nicholas

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On Fri, Nov 5, 2010 at 11:04 AM, Danny Nicholas <danny at debsinc.com>
wrote:
> Hi Gang,
>
> ???????????? My production box with my DAHDI cards is a 1.4.26 build.? I
> have 3 test machines that I do IAX communication with.
>
> Machine 1 is a real Dell POWEREDGE 1500 running CENTOS running 1.4.30.
> Machine 2 is a SUSE 11.1 VM running 1.4.30.? Machine 3 is another SUSE 11.1
> VM running 1.8.0. ??I can SIP into all 4 machines and life is great.? When
I
> try to IAX from the live machine to Machine 3, I get lags/pauses on
> Background/Playback commands.? I play files and groups of files that last
> from 1-45 seconds, so I can press keys and proceed, but I don?t expect my
> end-users to know to do this.? Any clues?? Do I need to open a tracker
issue
> on this one?
>
>
>
> Thanks
>
> Danny Nicholas
https://issues.asterisk.org/view.php?id=18105

On 5 Nov 2010, at 15:04, Danny Nicholas wrote:
> Hi Gang,
>              My production box with my DAHDI cards is a 1.4.26 build.  I
have 3 test machines that I do IAX communication with.
> Machine 1 is a real Dell POWEREDGE 1500 running CENTOS running 1.4.30. 
Machine 2 is a SUSE 11.1 VM running 1.4.30.  Machine 3 is another SUSE 11.1 VM
running 1.8.0.   I can SIP into all 4 machines and life is great.  When I try to
IAX from the live machine to Machine 3, I get lags/pauses on Background/Playback
commands.  I play files and groups of files that last from 1-45 seconds, so I
can press keys and proceed, but I don?t expect my end-users to know to do this. 
Any clues?  Do I need to open a tracker issue on this one?
>  
> Thanks
> Danny Nicholas
> -- 
There is an open bug on this - or something very like it -
https://issues.asterisk.org/view.php?id=18110
The work around seems to be to set

internal_timing = yes 

 in asterisk.conf

and 

noload => res_timing_dahdi.so
;noload => res_timing_pthread.so
noload => res_timing_timerfd.so

in modules.conf

Which forces asterisk to use the (older less efficient/accurate) pthreads timer.

The bug looks to be being worked on, so I'm optimistic it will be fixed
soon.

Tim.

> 
Tim Panton - Web/VoIP consultant and implementor
www.westhawk.co.uk



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