[asterisk-bugs] [JIRA] (ASTERISK-12117) chan_sip creates a new local tag (from-tag) for every register message

[Matt Jordan (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-12117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Jordan reopened ASTERISK-12117:
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Re-opening per discussion on #asterisk-dev.
                
> chan_sip creates a new local tag (from-tag) for every register message
> ----------------------------------------------------------------------
>
>                 Key: ASTERISK-12117
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-12117
>             Project: Asterisk
>          Issue Type: Bug
>          Components: Channels/chan_sip/Registration
>            Reporter: Pawel Pierscionek
>            Severity: Minor
>
> refreshing from-tag for each register message - even within the same dialog is against RFC. 
> ****** ADDITIONAL INFORMATION ******
> from-tag should be consistent within a dialog otherwise some SIP validators/firewalls/proper proxies might drop  the register message as it does not follow RFC. 
> sipXecs is such an example. 
> removing the chan_sip.c line that contains the comment
> "create a new local tag for every register attempt" seems to solve the problem. 

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