[asterisk-dev] jitterbuffer question

[Klaus Darilion]

Hi!

Recently someone released for chan_ss7 a patch for a jitter buffer:
http://lists.digium.com/pipermail/asterisk-ss7/2008-April/001812.html

Actually I do not understand why the jitter buffer is in chan_ss7. I 
would think that the jitter buffer should be in the channel technology 
which causes the jitter - e.g. if chan_sip receives RTP packets with 
jitter, chan_sip should take care of it and implement a jitter buffer, 
not chan_ss7.

Thus, I wonder what is the jitterbuffer concept in Asterisk. Is there a 
jitterbuffer for each channel? If yes - is it on the incoming channel 
driver or on the outgoing channel driver? If no - is there a 
jitterbuffer in the core which can be activated by the channel driver or 
is it activated always (transparent to the channel drivers)?

thanks
Klaus