asterisk users - Oct 2008 - Help with remote users

I know I have asked about this before, but I thought that I would ask again
with some more detail and maybe someone will have an idea.  This is my first
time to be setting up an asterisk server and I have a server running.  I
sent Linksys PAP2T?s to several remote users.  Only one out of the four
users actually work like they should.  One of the other users I am assuming
is behind a firewall on his wireless router and needs to open up the proper
ports.  However, I have two users in New York on a DSL connection and I
can?t understand why things are happening like they are.

Here Is the situation.  Both users can plug in their ATAs and I can watch
the server output, they register and then they can make calls and I can call
them. Some time later (usually within minutes) the ATAs show to be
?unreachable? and I can no longer call; however, they can still make calls.

I am at a loss as to why this is happening.  They are hooking up right into
a DSL modem, I was thinking maybe it is because they are using DSL but I
don?t understand why that makes a big difference because I have seen people
using vonage phones with the same PAP2T?s on worse DSL connections than we
have in New York. 

I am new to asterisk, so any thoughts would be helpful.  I will be glad to
provide any more information that might be useful.

I thank you for your time.

Steve Anness
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On Oct 6, 2008, at 1:53 PM, Steve Anness wrote:
> I know I have asked about this before, but I thought that I would  
> ask again with some more detail and maybe someone will have an  
> idea.  This is my first time to be setting up an asterisk server and  
> I have a server running.  I sent Linksys PAP2T?s to several remote  
> users.  Only one out of the four users actually work like they  
> should.  One of the other users I am assuming is behind a firewall  
> on his wireless router and needs to open up the proper ports.   
> However, I have two users in New York on a DSL connection and I  
> can?t understand why things are happening like they are.
>
> Here Is the situation.  Both users can plug in their ATAs and I can  
> watch the server output, they register and then they can make calls  
> and I can call them. Some time later (usually within minutes) the  
> ATAs show to be ?unreachable? and I can no longer call; however,  
> they can still make calls.
do you have qualify=yes ??
Is asterisk on a public IP?


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THANK YOU!!! 


This appears to have worked.  I am assuming we can do the same thing on our
SPA-962s that we send to make sure they work with no problems.

Thank you to everyone here for your help.  This is an excellent group to
have access to for questions.  I hope to learn and be able to help others.

Steve Anness



On 10/7/08 9:53 AM, "Andres" <andres at telesip.net> wrote:
> 
>>>> 
>>>> Here Is the situation.  Both users can plug in their ATAs and I
can watch
>>>> the server output, they register and then they can make calls
and I can
>>>> call
>>>> them. Some time later (usually within minutes) the ATAs show to
be
>>>> "unreachable" and I can no longer call; however, they
can still make calls.
>>>> 
>>>>      
>>>> 
> The fact that they work initially is probably a clear indication that
> the NAT bindings are closing up after a few minutes.  In some cases it
> does not matter that you have qualify=yes, since the router only keeps
> bindings open if the traffic is being generated from the
> inside->outside.  Your solution would be to enable the keep-alive
> settings on the PAP2 and set it low to something like 15 seconds.  The
> setting is under the tab of line 1 and line 2 and its called "NAT Keep
> Alive Enable".
> 
> Andres
> http://www.neuroredes.com
> 
>>>> do you have qualify=yes ??
>>>> Is asterisk on a public IP?
>>>> 
>>>> 
>>>> 
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> 
> 
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