[asterisk-dev] New chan_iax media-only transfers: questions

[Kevin P. Fleming]

Steve Kann wrote:

> One thing, though, w.r.t Kevin's response:  At first, I'd think that tf
> all full frames still go through the "central" system, this is going to
> have a deleterious effect on jitter, if the network path between the
> endpoints is significantly different than the network path including the
> "central" server  (because some VOICE frames are full frames)   On the
> other hand, since only a small number of voice frames are full
> (typically once every 65 seconds), the jitterbuffer will probably just
> drop them and interpolate if they're late..

When I mentioned this to Mark while he was proposing the idea, he
basically said he didn't see any reason to continue sending _any_ full
voice frames, that the receiver should just learn that the timestamps
have wrapped around without having to be told about it. He changed the
code to work that way, so that full voice frames are only sent when the
call is first set up, or when the timestamp has wrapped around more than
once.