i need to test Speex for IAX ( i have 2 servers over VPN using IAX ) and want to use Speex between .
so i got this Unable to create translator path for (speex) to (ulaw) when i try to make calls between these 2 servers ,
transaltion matrix didnot show speex . i am using asterisk 11 freepbx 12
gsm ulaw alaw g726 adpcm slin lpc10 g729 ilbc g726aal2 g722 slin16 testlaw
gsm - 15000 15000 15000 15000 9000 15000 15000 15000 15000 17250 26250 15000
ulaw 15000 - 9150 15000 15000 9000 15000 15000 15000 15000 17250 26250 15000
alaw 15000 9150 - 15000 15000 9000 15000 15000 15000 15000 17250 26250 15000
g726 15000 15000 15000 - 15000 9000 15000 15000 15000 15000 17250 26250 15000
adpcm 15000 15000 15000 15000 - 9000 15000 15000 15000 15000 17250 26250 15000
slin 6000 6000 6000 6000 6000 - 6000 6000 6000 6000 8250 17250 6000
lpc10 15000 15000 15000 15000 15000 9000 - 15000 15000 15000 17250 26250 15000
g729 15000 15000 15000 15000 15000 9000 15000 - 15000 15000 17250 26250 15000
ilbc 15000 15000 15000 15000 15000 9000 15000 15000 - 15000 17250 26250 15000
g726aal2 15000 15000 15000 15000 15000 9000 15000 15000 15000 - 17250 26250 15000
g722 15600 15600 15600 15600 15600 9600 15600 15600 15600 15600 - 9000 15600
slin16 21600 21600 21600 21600 21600 15600 21600 21600 21600 21600 6000 - 21600
testlaw 15000 15000 15000 15000 15000 9000 15000 15000 15000 15000 17250 26250
so how can i enable that ?