[Asterisk-Users] zttest - 100% ?

[DRi at b-w-computer.de]

Digium itself is saying their cards may work not properly with zttest 
results below 99,98
the card itself is working  the way that we can call out and receive 
calls, but we encountered massive echo-problems - sometimes more,
sometimes less even on lines within the same phone-provider and be sure 
that we've been messing around with all other possible
parameters for weeks without any result. Until now we've got a setup that 
we can live with at least until we get different hardware.
It's really worse calling someone and missing the name the called person 
said then picking up the phone in cause of echo-cancelling
parameters or even think the line is dead, or if you've got massive echoes 
and it takes about 30 seconds to filter them out if at all.

Dirk

asterisk-users-bounces at lists.digium.com wrote on 30.09.2005 16:34:18:

> DRi at b-w-computer.de wrote:
> > just as an (bad) example:
> >         we are using an x206 and couldn't get the zttest above 99.975 
> > equal what we were doing
> >         single irq, w/o acpi, w/o apic, different kernels, w/o 
> > hyperthreading, different slots, a.s.o.
> >         for an Digium wildcard TE110P 
> > 
> > so if someone got such a board to zttest 100% maybe could give some 
> > information if where's something
> > special to run asterisk on such boards...
> > otherwise I think there are production differences on the 
ibm-mainboards 
> > or the used chipsets
> > 
> > we'll change hardware next...
> You don't have to have 100% on zttest.  You probably won't get it.  I 
> get the same results on one of my servers and  it runs perfectly.
> 
> Kevin
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