Hi, I have a question about jitterbuffer and PLC.
I use Asterisk 1.6.2.0 and 1.6.0.20 or older.
I use uLaw.
My system map:
============================================================================
[ asterisk 2 ] -- # LOSS # -- # A # -- [ asterisk 1 ] -- # B # -- [ X-lite ]
============================================================================
I use two asterisk server.
'asterisk 2' do "Playback(some voice file)"
'asterisk 1' do "jitter".
'asterisk 1' and 'asterisk 2' has trunked by sip or iax2.
X-lite call 3003 to asterisk 1,
and asterisk 1 call 3000 to asterisk 2.
On the map,
at "LOSS" I caused packet loss 5%,
and at "A" and "B" I captured packet.
I thought number of packets at "B" would be same number from
"asterisk 2".
And I thought number of packets at "A" would be 95% from
"asterisk 2".
But the result is different!
At "A" and "B" is the same number as 95%.
No PLC ,No interpolations has made.
But on CLI,messages was "like that jitter and PLC work right" .
Like this:
======================================================-- Local/3000 at
extd-651d;1 answered SIP/"id"-00000001
-- fixed jitterbuffer created on channel Local/3000 at extd-651d;1
VvvvvvvvLvvvvvvvvvvvvvvvLvvvvLvvvvvv
vvvvvvvvvvvvvvvvvvvvvvLvvvvvvLvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvLvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvLvvvv
vvvvLvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvLLvvvvvvLvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvLvvvvvvvvvvvvvvvvvvLvvvvvvvvvLvvvvv
vvvvvvvvvvvvvLLLLLLLLLL -- Hungup
'IAX2/"ip-address":4569-3645'
== Spawn extension (extd, 3000, 2) exited non-zero on 'Local/3000 at
extd-651d;2'
-- fixed jitterbuffer destroyed on channel Local/3000 at extd-651d;1
== Spawn extension (extd, 3003, 2) exited non-zero on
'SIP/"id"-00000001'
======================================================
Why ? why no interpolations ?
when sip trunk and iax trunk,same result.
I don't know how to do. So please help me.
How to do to work correct.
Or Asterisk has not yet have jitter and PLC ,hasn't it?
In 'asterisk 1' ,
================================================================= write on
sip.conf => jbenable=yes ,and , jbimpl=adaptive
write on iax.conf => jitterbuffer=yes ,and, trunktimestamps=yes
write on codecs.conf => genericplc => true
and on extensions.conf
when use sip trunk =>
-------------------------------
exten => 3003,1,Dial(Local/3000 at extd/nj)
exten => 3000,1,Set(CALLERID(num)="some id")
exten => 3000,2,Dial(SIP/${EXTEN}@"some exten in sip.conf",120,T)
exten => 3000,3,Congestion
--------------------------------
when use iax trunk =>
-------------------------------
exten => 3003,1,Dial(Local/3000 at extd/nj)
exten => 3000,1,Set(CALLERID(num)="some id")
exten => 3000,2,Dial(IAX2/"id:pass"@"asterisk 2
ip-address"/${EXTEN},120,T)
exten => 3000,3,Congestion
--------------------------------
=================================================================
In 'asterisk 2' ,
=================================================================write on
extensions.conf
=>
---------------------------
exten => 3000,1,Answer()
exten => 3000,2,Wait(1)
exten => 3000,3,Playback(aaa)
exten => 3000,4,Congestion
---------------------------
==================================================================