IAX trunk quality issue

haywoodcox

Joined
Jun 11, 2009
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#1
Hi all experts,

I have a Elastix box 1.6. User report that having intermittent quality issue for IAX trunk.

When A site have call with B site, B site can't hear A site clearly, but A site can hear B site quite clear. Similar problem happen when A site have call with C site which C site could not hear A site clearly.

Both B site and C site are using Asterisk 1.2.

My trunk setting in A site is below.
disallow=all
allow=alaw&ilbc
type=friend
username=xxxxxx
inkeys=xxxxxx
outkey=xxxxxxx
auth=rsa
host=xx.xx.xx.B_Site
context=from-internal
qualify=yes
sendani=yes
trunk=yes
qualifyfreqok=60000
requirecalltoken=auto

My trunk setting in B site is below:
disallow=all
allow=alaw
allow=ilbc
type=friend
username=xxxxxxxx
inkeys=xxxxxxx ; peer public key
outkey=xxxxxxx ; its private key
auth=rsa
host=xx.xx.xx.A_site ;remote IP address
context=default
qualify=yes
sendani=yes
trunk=yes
qualifyfreqok = 60000
recalltoken=auto

Is there any setting I could add to enhance the quality?
 

dicko

Joined
Oct 24, 2008
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#2
an ABSOLUTE requirement of IAX2 trunking is that you have a "rock solid" timer, if you don't have dahdi hardware you will need dahdi_dummy, (currently, but maybe this will change, maybe, soon . . .)

both ends must have a dahdi_test -vv that NEVER goes below 99.9%+.

if you don't, do all the old irq (no vm's) stuff to get there.

regards



dicko
 

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