[Asterisk-Users] IAX introducing huge latency

[chawki hammoud]

I posted my message before and i recieved some tips,
but the problem is persistent.
My calls from my iax through my voip provider is
suffering huge delay. The issue is very interesting.
Here what I did:

I placed a call through a voip provider from my
console CLI. Then i ran a test "iax2 show netast" and
here what i get when at the beginning of the call

EMOTE --------------------
Channel                    RTT  Jit  Del  Lost   %  
IAX2/selectcom-2          1000  183  193    -1  -1   
-1   -1      0    0    0    0   0     0    0      0


RTT: the asterisk ping round trip is 1000 ms,but i
perform ping from shell command line, i get around
750ms.

after few seconds, i ran "iax2 show netast" from
asterisk CLI again, and here what i got:

Channel                    RTT  Jit  Del  Lost   %  
IAX2/selectcom-2          4340  779  790    -1  -1

few seconds later, i got

Channel                    RTT  Jit  Del  Lost   %  
IAX2/selectcom-2          17945  258  810    -1

Now, the final RTT is tremendous 17942 ms. But the
delay is actually about four secs.

Each time i check the ping from the shell command
line, i pretty much get around 750ms.

Where the latency the iax experiencing comming from. I
am behind a nat, is there a well known issues for
being behind the nat. what should i try






		
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