G729 option

General Help
1

Assuming that one has purchase a g729 license, can 2 trunks be opened, one running g711 and the other g729? And can the different codecs be set within Freepbx?

2

On each of the target trunk’s own TRUNK page

Under OUTGOING SETTINGS, PEER DETAILS,

[trunk-1]
type=friend
disallow=all
allow=g711

then on the next target trunk’s own page,

under OUTGOING SETTINGS, PEER DETAILS,

[trunk-2]
type=friend
disallow=all
allow=g729

Be advised that transcoding (translation) can be hard on the CPU, depending on the CODEC, the CPU, the CODEC-CPU instruction-set optimization (e.g. SSE3, or not), and the number of concurrent sessions.

Suggest using,

*CLI> core show translation recalc 
         Recalculating Codec Translation (number of sample seconds: 1)

This will show how “expensive” translations are on your machine and installed codecs.

/S