[asterisk-bugs] [Asterisk 0018951]: [regression] Cisco phones do not register

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18951 
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Reported By:                jmls
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18951
Category:                   Channels/chan_sip/Registration
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           SVN 
JIRA:                       SWP-3257 
Regression:                 Yes 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  1.4  
SVN Revision (number only!): 309947 
Request Review:              
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Date Submitted:             2011-03-09 15:40 CST
Last Modified:              2011-04-22 01:41 CDT
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Summary:                    [regression] Cisco phones do not register
Description: 
Prior to r304241, cisco phones worked fine. After this revision, cisco 79xx
phones do not register with asterisk.
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 (0134032) klaus3000 (reporter) - 2011-04-22 01:41
 https://issues.asterisk.org/view.php?id=18951#c134032 
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The Cisco phone does not send REGISTER with credentials. All REGISTER
requests are retransmissions of the first one. I guess the 401 response
does not get back to your Cisco phone. Looks like a firewall problem.

Use tcpdump/Wireshark/ngrep to verify that the response leaves the
Asterisk server and is routed correctly. Try also nat=no for this peer
(maybe there is a firewall which really wants the response back to the port
announced in the Via header) 

Issue History 
Date Modified    Username       Field                    Change               
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2011-04-22 01:41 klaus3000      Note Added: 0134032                          
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