[asterisk-users] solution for NAT issues?

[Ron]

hi sir,

yes i am using Linksys SPA's i set NAT Mapping enable and NAT Keep-live 
to Yes. still sometimes the phone cannot be reach even though it is 
registered.

regards
ron



SIP wrote:
> Does the phone have some sort of NAT Keepalive setting? Often, the only
> way to keep that port open on the user's NAT gateway is to have the
> NATted client send the occasional data out through the port.
> 
> N.
> 
> 
> Ron wrote:
>> 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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>> _______________________________________________
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> 
> 
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