[asterisk-users] strange transcoding values

[Jeff LaCoursiere]

On Tue, 13 Oct 2009, Gianluca Baù wrote:

> Hello guys,
> i have a question about a voip gateway we use.
> I saw those values typing in cli:
>
> core show translation
>
>           g723   gsm  ulaw  alaw g726aal2 adpcm  slin lpc10  g729 speex  ilbc  g726  g722 slin16
>     g723     -     -     -     -        -     -     -     -     -     -     -     -     -      -
>      gsm     -     -  2001  2001     6000  2001  2000 16000     - 34002     -  6000  4000  10000
>     ulaw     -  6001     -     1     4001     2     1 14001     - 32003     -  4001  2001   8001
>     alaw     -  6001     1     -     4001     2     1 14001     - 32003     -  4001  2001   8001
> g726aal2     - 10000  4001  4001        -  4001  4000 18000     - 36002     -     1  6000  12000
>    adpcm     -  6001     2     2     4001     -     1 14001     - 32003     -  4001  2001   8001
>     slin     -  6000     1     1     4000     1     - 14000     - 32002     -  4000  2000   8000
>    lpc10     - 10000  4001  4001     8000  4001  4000     -     - 36002     -  8000  6000  12000
>     g729     -     -     -     -        -     -     -     -     -     -     -     -     -      -
>    speex     - 10000  4001  4001     8000  4001  4000 18000     -     -     -  8000  6000  12000
>     ilbc     -     -     -     -        -     -     -     -     -     -     -     -     -      -
>     g726     - 10000  4001  4001        1  4001  4000 18000     - 36002     -     -  6000  12000
>     g722     - 14001  8002  8002    12001  8002  8001 22001     - 40003     - 12001     -   6000
>   slin16     - 22001 16002 16002    20001 16002 16001 30001     - 48003     - 20001  8000      -
>
> Do you think it is normal? Could be this values symptom of a problem on the server?
> We have some voice quality problems in our voip network.
>
> I have to say that this gateway at the moment is not assigned to perform transcoding (i'd like it did it since its is a good hardware) but this values seems strange to me. In others servers i have very minor values.
>
> It is assigned to the last part of our voice network and it send traffic in alaw via sip to our isp.
> Its load in not heavy, it never handles more than 20 simultaneously calls.
>
> The machine is a 4 cpu Xeon(TM) CPU 3.06GHz with 2 Gb of ram one Wildcard TE405P quad-span T1/E1/J1
>
> Linux is a Debian 5
>
> Linux gw-01 2.6.26-1-686 #1 SMP Fri Mar 13 18:08:45 UTC 2009 i686 GNU/Linux
>
> Asterisk is
>
> gw-e1-01*CLI> core show version
> Asterisk 1.6.0.15 built by root @ gw-01 on a i686 running Linux on 2009-09-24 08:41:26 UTC
> gw-e1-01*CLI>
>
> Dahdi is
>
> dahdi-linux-2.2.0.2
> dahdi-tools-2.2.0
> libpri-1.4.10.1
>
> (upgraded today to see changes)
>
> Thanks for yours indications, regards
>
> Gianluca
>

Hi,

Your other boxes are probably pre 1.6.  Values are now printed in 
microseconds rather than milliseconds.

j