[Asterisk-Dev] IAX2 trunk really should send timestamps as part of iax2_meta_trunk_entry..

[Steve Kann]

Andrew Kohlsmith wrote:

>>If you want to save even more, use a slightly larger trunkfreq; like
>>60ms or so: Right now,   this might or might not work depending on what
>>you're doing, but with this change, it should work fine.
>>    
>>
>
>With the larger trunkfreq (god that's a bad name, it's *not* the trunking 
>frequency, it's the trunking period) you lose more on a dropped frame though 
>-- all a balancing act.  :-)
>  
>

Ahh, but, if with timestamps, you could interleave, like this:

Trunk Frame 1:   Call 1 Frame 1, Call 1 Frame 3
Trunk Frame 2:   Call 1 Frame 2, Call 1 Frame 4
Trunk Frame 3:   Call 1 Frame 5, Call 1 Frame 7
Trunk Frame 4:   Call 1 Frame 6, Call 1 Frame 8
[...]

So, when you lose a trunk frame, you lose 2 frames, but not 2 
consecutive frames.

Combine that with PLC, and you can sustain a bunch of loss..

-SteveK