[asterisk-users] Quality problems with ISDN PRI

[linuxian iandsd]

best solution would be to return quad card & buy 4 single port cards & put 4
servers instead of  one ... but i guess this is only possible it you had a
time machine ...



On Wed, Apr 23, 2008 at 2:44 PM, Matthew Fredrickson <creslin at digium.com>
wrote:

> Carles Pina i Estany wrote:
> > Hello,
> >
> > We have an Asterisk server with a TE410P Quad-Span togglable E1/T1/J1
> > card, 3 SPANs configured and OK and one SPAN unconfigured.
> >
> > In our tests it works fine, but when it has a big laod of calls (say,
> > from 40 to 60) we have quality problems: some calls has the sound
> > cut-off (during the call, voice was not stable)
> >
> > The IRQ card is alone, CPU load was not high, network was fine for sure.
> > This server is receiving the calls from SIP channels and routing to the
> > primaries. It's a HP server, multicore, multiCPU.
> >
> > I'm wondering if someone has had these kind of problems (quality
> > problems, sound cut off) with 40 and 60 calls but not with 2 or 3, using
> > Digium cards.
> >
> > Bit later I will call to Digium but I thought that here there is lot of
> > people with lot of experience with these cards.
>
> There are a number of factors that can contribute to this type of
> problem, but probably the best solution is to call support and talk to
> them about this.
>
> --
> Matthew Fredrickson
> Software/Firmware Engineer
> Digium, Inc.
>
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