We just moved our office to a location with much less bandwidth currently available, until we get fiber installed.
So I’ve made the call to move to g.729 in the meantime. I purchased a license to test with, set it up and all, but a few weird things are going on:
-Doing a test call from my phone shows that it’s using roughly 150kbps (watching it via Cockpit)
-Doing a test call from another phone (on its own, or simultaneously with my phone) shows slightly higher bandwidth usage of roughly 400kbps (unchanged from before I started this project)
-Running g729 show licenses tells me that 0/0 are in use, while on a call on any endpoint (of 1 licensed channel)
As for configuring FreePBX to use the license, I changed allow=ulaw to allow=g729 in my trunk config, and checked g729 in SIP Settings, and moved it to the top of the audio codec list. The other codecs are still checked. In each endpoint (not just mine), they are setup to use g722,ulaw,alaw,g729 (in that order).
Suggestions? It’s nice that we’re saving a little bandwidth, but it’s nowhere near the 8kbps I was expecting. And do I need to purchase a license per endpoint, versus per channel in use? Is that why the other ones are using more bandwidth, even when my endpoint isn’t in use?
Edit: looking at the console, when a call is up from the high bandwidth (it does NOT appear when calling from mine) endpoints, this appears: WARNING[6057][C-0000002c]: translate.c:492 ast_translator_build_path: No translator path from g729 to slin1
So I ran a core show translation and it seems to have a path to me:
ulaw alaw gsm g726 g726aal2 adpcm slin slin slin slin slin slin slin slin slin lpc10 g729 speex speex speex ilbc g722 testlaw
ulaw - 9150 15000 15000 15000 15000 9000 17000 17000 17000 17000 17000 17000 17000 17000 15000 15000 15000 23000 23000 15000 17250 15000
alaw 9150 - 15000 15000 15000 15000 9000 17000 17000 17000 17000 17000 17000 17000 17000 15000 15000 15000 23000 23000 15000 17250 15000
gsm 15000 15000 - 15000 15000 15000 9000 17000 17000 17000 17000 17000 17000 17000 17000 15000 15000 15000 23000 23000 15000 17250 15000
g726 15000 15000 15000 - 15000 15000 9000 17000 17000 17000 17000 17000 17000 17000 17000 15000 15000 15000 23000 23000 15000 17250 15000
g726aal2 15000 15000 15000 15000 - 15000 9000 17000 17000 17000 17000 17000 17000 17000 17000 15000 15000 15000 23000 23000 15000 17250 15000
adpcm 15000 15000 15000 15000 15000 - 9000 17000 17000 17000 17000 17000 17000 17000 17000 15000 15000 15000 23000 23000 15000 17250 15000
slin 6000 6000 6000 6000 6000 6000 - 8000 8000 8000 8000 8000 8000 8000 8000 6000 6000 6000 14000 14000 6000 8250 6000
slin 14500 14500 14500 14500 14500 14500 8500 - 8000 8000 8000 8000 8000 8000 8000 14500 14500 14500 14000 14000 14500 14000 14500
slin 14500 14500 14500 14500 14500 14500 8500 8500 - 8000 8000 8000 8000 8000 8000 14500 14500 14500 6000 14000 14500 6000 14500
slin 14500 14500 14500 14500 14500 14500 8500 8500 8500 - 8000 8000 8000 8000 8000 14500 14500 14500 14500 14000 14500 14500 14500
slin 14500 14500 14500 14500 14500 14500 8500 8500 8500 8500 - 8000 8000 8000 8000 14500 14500 14500 14500 6000 14500 14500 14500
slin 14500 14500 14500 14500 14500 14500 8500 8500 8500 8500 8500 - 8000 8000 8000 14500 14500 14500 14500 14500 14500 14500 14500
slin 14500 14500 14500 14500 14500 14500 8500 8500 8500 8500 8500 8500 - 8000 8000 14500 14500 14500 14500 14500 14500 14500 14500
slin 14500 14500 14500 14500 14500 14500 8500 8500 8500 8500 8500 8500 8500 - 8000 14500 14500 14500 14500 14500 14500 14500 14500
slin 14500 14500 14500 14500 14500 14500 8500 8500 8500 8500 8500 8500 8500 8500 - 14500 14500 14500 14500 14500 14500 14500 14500
lpc10 15000 15000 15000 15000 15000 15000 9000 17000 17000 17000 17000 17000 17000 17000 17000 - 15000 15000 23000 23000 15000 17250 15000
g729 15000 15000 15000 15000 15000 15000 9000 17000 17000 17000 17000 17000 17000 17000 17000 15000 - 15000 23000 23000 15000 17250 15000
speex 15000 15000 15000 15000 15000 15000 9000 17000 17000 17000 17000 17000 17000 17000 17000 15000 15000 - 23000 23000 15000 17250 15000
speex 23500 23500 23500 23500 23500 23500 17500 17500 9000 17000 17000 17000 17000 17000 17000 23500 23500 23500 - 23000 23500 15000 23500
speex 23500 23500 23500 23500 23500 23500 17500 17500 17500 17500 9000 17000 17000 17000 17000 23500 23500 23500 23500 - 23500 23500 23500
ilbc 15000 15000 15000 15000 15000 15000 9000 17000 17000 17000 17000 17000 17000 17000 17000 15000 15000 15000 23000 23000 - 17250 15000
g722 15600 15600 15600 15600 15600 15600 9600 17500 9000 17000 17000 17000 17000 17000 17000 15600 15600 15600 15000 23000 15600 - 15600
testlaw 15000 15000 15000 15000 15000 15000 9000 17000 17000 17000 17000 17000 17000 17000 17000 15000 15000 15000 23000 23000 15000 17250 -