Re: [Asterisk-Users] IAX2 Trunk Problems with NAT

Mon, 07 Feb 2005 00:12:35 -0800

Hallo
i had same problem
you need to staticly set the register refresh variable in the iax2.h file and recompile. (cannot remember exact variable.. will look if you cannot find it.
put this on the external server.
I had to drop mine down to 14 sec, the default is 60.
the problem is that the nat translations seems to only stay for 15 sec. dont know why.
 
cheers
 
----- Original Message -----
Sent: Monday, February 07, 2005 9:45 AM
Subject: [Asterisk-Users] IAX2 Trunk Problems with NAT

Hi,

 

I have successfully configured an IAX trunk between 2 asterisks, calls can go through both ways without any problems, NAT in the middle of course (iptables)

 

Now , leave them for a while ,   and make a call from the external server , it doesn’t go through,

 

Dial from the internal one, everything works fine again..

 

 

Now , it is clearly  a problem in the NAT engine, although IAX shouldn’t have this problem   

 

is there something I can do to prevent asterisk from tearing down the trunk while it is not used

 

or , modify the iptables so that  to allow the incoming UDP connections

 

 

Cheers

 

h

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