If the phones are behind NAT you can try lowering the registration
interval to something LESS than 4 hours, like 60 seconds or 120
seconds.  Usually this problem is because the NAT firewall sees no
activity on the registration port and so deletes the NAT translation for
that port.

On Fri, 2004-03-19 at 16:26, Thomas Gallaway wrote:
> Hi
> 
> Here is my problem. I have 2 phones (Grandstream Budge Tone-100) loosing 
> the sip registration
> every 4 hours. I can not find out why.
> 
> It seems like the registration fails, then a few minutes after registers 
> sucessfull.
> 
> Mar 19 14:06:14 NOTICE[147466]: Registration from 
> '<sip:[EMAIL PROTECTED];user=phone>' failed for '192.168.1.114'
> -- Executing NoOp("SIP/114-5d35", "") in new stack
> -- Registered SIP '114' at 192.168.1.114 port 5060 expires 180
> 
> sip show peers show's me this:
> 116/116          192.168.1.116   (D)  255.255.255.255  5060     Unmonitored
> 114/114          (Unspecified)   (D)  255.255.255.255  0        Unmonitored
> 113/113          192.168.1.113   (D)  255.255.255.255  5060     Unmonitored
> 
> Thanks for any input on this.
> 
> -- Thomas
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-- 
For Asterisk PBX related documentation go to
http://www.digium.com/index.php?menu=documentation and look at the
"Unofficial Links" section also see
http://www.voip-info.org/wiki-Asterisk also see my site at
http://www.fnords.org/~eric/asterisk/

BTEL Consulting

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