[asterisk-users] jitterbuffer

[farah.auf at epfl.ch]

 i want to get some statistics about the call quality with asterisk.
 I used the following command: iax2 show netstats
 and the result changes depending on the configuration of iax.conf.

 When i enable jitterbuffer=yes and forcejitterbuffer=yes, i get the
 following result:

 voip*CLI> iax2 show netstats
                                 -------- LOCAL ---------------------
 -------- REMOTE --------------------
 Channel                    RTT  Jit  Del  Lost   %  Drop  OOO  Kpkts  Jit
 Del  Lost   %  Drop  OOO  Kpkts
 IAX2/i55333-6207          1500    2   42     0   0     0    0      0    0
   0     0   0     0    0      0
 1 active IAX channel
 voip*CLI> iax2 show netstats
                                 -------- LOCAL ---------------------
 -------- REMOTE --------------------
 Channel                    RTT  Jit  Del  Lost   %  Drop  OOO  Kpkts  Jit
 Del  Lost   %  Drop  OOO  Kpkts
 IAX2/i55333-6207            22    2   43     1   0     0    0      1    0
  40     0   0     0    0      0
 1 active IAX channel
 voip*CLI> iax2 show netstats
                                 -------- LOCAL ---------------------
 -------- REMOTE --------------------
 Channel                    RTT  Jit  Del  Lost   %  Drop  OOO  Kpkts  Jit
 Del  Lost   %  Drop  OOO  Kpkts
 IAX2/i55333-6207            22    2   43     1   0     0    0      1    0
  40     0   0     0    0      0
 1 active IAX channel


 and when i disable it i get:

 voip*CLI> iax2 show netstats
                                 -------- LOCAL ---------------------
 -------- REMOTE --------------------
 Channel                    RTT  Jit  Del  Lost   %  Drop  OOO  Kpkts  Jit
 Del  Lost   %  Drop  OOO  Kpkts
 IAX2/i55333-11724         1500   -1    0    -1  -1     0   -1      0    0
   0     0   0     0    0      0
 1 active IAX channel
 voip*CLI> iax2 show netstats
                                 -------- LOCAL ---------------------
 -------- REMOTE --------------------
 Channel                    RTT  Jit  Del  Lost   %  Drop  OOO  Kpkts  Jit
 Del  Lost   %  Drop  OOO  Kpkts
 IAX2/i55333-11724           20   -1    0    -1  -1     0   -1      1    0
  40     0   0     0    0      0
 1 active IAX channel
 voip*CLI> iax2 show netstats
                                 -------- LOCAL ---------------------
 -------- REMOTE --------------------
 Channel                    RTT  Jit  Del  Lost   %  Drop  OOO  Kpkts  Jit
 Del  Lost   %  Drop  OOO  Kpkts
 IAX2/i55333-11724           20   -1    0    -1  -1     0   -1      1    0
  40     0   0     0    0      0
 1 active IAX channel


 Should i enable it or not?
 Is there any threshold for the field "lost" and "%" for which we can say
 that the call quality is bad?

 Thank you

 F.A
>
> ======================================================================
>
> ----------------------------------------------------------------------
>  (0095170) blitzrage (administrator) - 2008-11-20 08:47
>  http://bugs.digium.com/view.php?id=13937#c95170
> ----------------------------------------------------------------------
> This is not a bug, but rather a support issue. Please use the appropriate
> venues for support such as the #asterisk IRC channel, or the asterisk-users
> mailing list. Thanks!
>
> Issue History
> Date Modified    Username       Field                    Change
> ======================================================================
> 2008-11-20 08:47 blitzrage      Note Added: 0095170
> 2008-11-20 08:47 blitzrage      Status                   new => closed
> 2008-11-20 08:47 blitzrage      Resolution               open => no change
> required
> ======================================================================
>
>