[asterisk-users] Call quality

[Loic Didelot]

Hello,
I forgot to include CPU information

root at ppsite1:/usr/src/bristuff-0.4.0-RC2# cat /proc/cpuinfo 
processor	: 0
vendor_id	: CentaurHauls
cpu family	: 6
model		: 10
model name	: VIA Esther processor 1000MHz
stepping	: 9
cpu MHz		: 1000.127
cache size	: 128 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge cmov pat
clflush acpi mmx fxsr sse sse2 tm nx up pni est tm2 rng rng_en ace
ace_en ace2 ace2_en phe phe_en pmm pmm_en
bogomips	: 2002.19
clflush size	: 64

The box is running asterisk, nothing else:
 - asterisk
 - postfix just to send out voicemails
 - no realtime
 - som AGIS at call setup and call end
 - Asterisk 1.4.19.1-BRIstuffed-0.4.0-RC2
 - zaptel-1.4.10

Best regards,
Loic Didelot.



On Tue, 2008-07-01 at 13:54 +0100, Steve Davies wrote:
> 2008/7/1 Loic Didelot <ldidelot at mixvoip.com>:
> > Hello,
> > one of my customers complained about bad voice quality on several calls,
> > so I programmed a button on each phone which users can hit if they have
> > audio drops and echo.
> >
> > I did this to check if there is a common recurrent problem to a given
> > destination or just for one user etc... But till now I could not detect
> > a pattern which could explain the problems
> >
> > This "alert button" is pressed between 7%-10% of all calls. The customer
> > has 25 phones and around 300 calls per day.
> >
> > The SNOM phones are connected to Linksys switches and are totaly split
> > from the computers network. The same goes for the asterisk box. No calls
> > are routed trough the internet.
> > Phone -> Local Lan -> Asterisk -> Zaptel (Junghanns BRI card) -> Carrier
> >
> > The carrier we use is known for his good quality and we never had a
> > problem. It is the historic and most expensive carrier in Luxembourg.
> >
> > Asterisk is running on a 1GHZ VIA CPU with 1GB RAM box. They have a
> > maximum of 6 concurrent calls.
> >
> 
> Which version of asterisk/zaptel, and which echo canceler is running in Zaptel?
> 
> Regards,
> Steve
> 
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-- 
Loïc DIDELOT
MIXvoip S.a.
ldidelot at mixvoip.com
http://www.mixvoip.com