[Asterisk-Users] Funny thing with LinkSys / IAX2

[Andrew Thompson]

Andrew Edmond wrote:
> *Community,
>  
> I am a new VoicePulse customer, using their EXCELLENT 
> connect.voicepulse.com services. 
>  
> I have asterisk CVS head 10/20/04 running quite successfully, with 10 
> SIP phones, voicemail, and 2 zaptel lines.  The box is running Gentoo 
> Linux, and is running on an Internet connection which is a ComCast cable 
> modem, with a LinkSys BEFSR41 router running the LAN.
>  
> I have IAX2 configured in IAX.conf registering my IAX2 line with their 
> gateway.  My toll outgoing calls are routed through their IAX2 gateway 
> (my local calls go out through my Zap lines).
>  
> However, I'm constantly having to "restart now" on the CLI (about every 
> ten-thirty minutes) to keep my connection to VoicePulse online (incoming 
> AND outgoing calls).  I have port forwarding on for ports 5060 and 4569 
> to my asterisk box.
>  
> After talking with user VoicePulse in #asterisk, we think that it has to 
> be something with the router or Internet connection we have.  Something 
> about routing or NAT tables being unreliable in LinkSys routers.
>  
> Anybody have any IAX2 weirdness with ComCast or LinkSys routers or a 
> combination of the two?
>  
> Help!  Thanks!

More likely than their being something broken, the router could just be 
timing out the connections for non-use.

Take a look at the qualify directive. The link below is for SIP, but the 
  meanings should pass over to IAX the same.

http://www.voip-info.org/wiki-Asterisk+sip+qualify

Also see if just an iax2 reload (or whatever) is sufficient, or if you 
must actually restart all of asterisk. (This could help narrow down the 
issue.)

-- 
Andrew Thompson
http://aktzero.com/