[Asterisk-Users] NAT and * - SIP Multiple login timeout

[Harold Workman]

asterisk-users-admin at lists.digium.com wrote:
> asterisk-users-admin at lists.digium.com wrote:
>>> BUT, I am now able to call both phones at the same time and they
>>> both ring. This sounds like Asterisk is blocking multiple
>>> connections  from the same IP Address?  How do i go about fixing
>>> this?
>>>
>>>
>>
>> Your NAT bindings are probably expiring.  You need to have your
>> phones send a Keep Alive every 10 - 30 seconds or change the
>> registration interval to 30 seconds and it should work ok.
>>
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>
> Actually I was using my last email as an Example. My re-registration
> phones are set for 45 seconds.  I dropped them down to 30 seconds
> with the same luck.  Also I dont believe they are expiring because if
> I get one of the phones to log in briefly then force it to log off
> without un-registering and change the sip.conf file to point
> host=x.x.x.x where x.x.x.x is the ip address of my firewall, and I
> make a call the phone still rings.  So Im certain its not the
> bindings expiring on my firewall or the phone call would never
> complete.
>
>
> I am pretty CERTAIN that Asterisk is not allowing multiple logins
> from the same IP Address. If i sit and watch the CLI sip debug, watch
> one phone register and call the other one, it goes through the
> Retransmitting to find the phone.  Once the other phone re-registers
> it rings again, but the other phone is dead in the water.
>
> Is this not normal?  Is there a command which allows multiple logins
> from the same IP Address? or is it just supposed to allow that
> anyways?
>


I also believe its not the NAT timing out because if i turn one of the
phones off and set the re-register to 5 or 10 minutes, the phone will always
ring.  Im only running into the problem when multiple phones are behind the
same ip address.


harold