[asterisk-users] Weird NAT issue ...

[Alan Williamson]

sorry for not replying to this sooner!

but the canreinvite=no trick worked a treat.

thank you

-- 
Alan Williamson

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Steve Davies wrote:
> If the two phones attempt to refer to each other using their external
> (NAT) IP addresses rather that their internal addresses, then it will
> all go horribly wrong. You do not provide enough information about
> asterisk IP addresses or firewalls for a possible solution, but
> assuming you are using SIP and asterisk, you could try
> "canreinvite=no" against the 2 phones to see if keeping the Asterisk
> server in-the-loop helps.
> 
> Also look on the VoIP wiki for "externip" and "localnet" in the
> sip.conf configuration.
> 
> Regards,
> Steve
> 
> On Mon, Mar 17, 2008 at 1:59 PM, Alan Williamson <alan at blog-city.com> wrote:
>> Afternoon one and all.
>>
>>  I am having some interesting fun with our Asterisk setup.
>>
>>  We have two CISCO handsets (7960) sitting on the same network (NAT).
>>
>>  Each phone can successfully originate calls.
>>
>>  Each phone can be called successfully from outside
>>
>>  Each phone can be directly called by other extensions OUTSIDE the network
>>
>>
>>  HOWEVER -- when those 2 phones try to call each other; the connection is
>>  made, but no voice is heard.
>>
>>  Any advice as to where i need to look?