Asterisk 1.6 local channel jitter buffer (/j)


Would anyone be able to tell me if there is any way to configure the settings of the jitter buffer which can be applied by using the Local channel construct with the ‘j’ option with Asterisk 1.6?

For example, as described on voip-info:

exten => 123,1,Dial(Local/124@some-context/nj)
exten => 124,1,MeetMe(some-room,dM)

I can’t find where to set the jitter buffer parameters. The jitter buffer which is enabled doesn’t seem to follow the SIP jitter buffer settings I could put in sip.conf (e.g. jbenable=yes, jbforce=yes, etc) nor does it seem to be affected by what I put in iax.conf (e.g. jitterbuffer=yes, forcejitterbuffer=yes, etc).

What I am trying to do is to force there to be a bigger jitter buffer than is there by default using the Local channel construct. Ideally, I want to be able to specify a fixed jitter buffer rather than an adaptive one too.

Would anyone know if any of this this is possible? If there is currently no way to configure the generic jitter buffer, is it something I’m likely to be able to find a developer to make possible?

Many thanks