[asterisk-users] solution for NAT issues?

[Ron]

i have also tried setting qualify='yes' but cpu usage spiked to 100%.

Ron wrote:
> Hi All,
> 
> 
> I been having issues on my users behind NAT, even if i hard set a 
> specific port on the phone, there are some network that NAT's it out to 
> a different port, in turn, some time later the phone could not be 
> reached by the server. i think because on the server, e.g. the user is 
> still registered on port 49923 but when the request is sent to that port 
>   the NAT router does not forward port 49923 to port of the IP phone, 
> maybe nat mapping has expired or something.
> 
> I have tried STUN, still sometimes the phones just cannot be reached.
> is there any other software to manage binding of ports on specific users 
> so that the routers always keeps the port mapped to port of the ip phone .
> TIA
> 
> Regards,
> Ron
> 
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