That's probably a timeout problem in the nat box.
 


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Norton
Sent: Wednesday, January 12, 2005 6:44 PM
To: 'Asterisk Users Mailing List - Non-Commercial Discussion'
Subject: [Asterisk-Users] Cant receive calls after network goes down and up

Hi,

 

I have several Grandstream phones connected to Asterisk, some behind NAT and others not. If I reboot all the phones, everything is fine. Should the connection go down, and then come back again, those behind a NAT are still able to make calls, but are unable to receive calls.

 

    -- Executing Dial("SIP/1239-ba74", "SIP/1242|60|t") in new stack

Jan 12 23:45:19 NOTICE[21576]: app_dial.c:803 dial_exec: Unable to create channel of type 'SIP' (cause 3)

  == Everyone is busy/congested at this time (1:0/1/0)

 

However, extension 1242 is still able to call 1239?

 

Is this a configuration problem in Asterisk or in the phones?

 

Please help

 

Regards

 

David Norton

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