channels/chan_sip: Respect outboundproxy setting when sending qualify requests
The outboundproxy setting is currently ignored when sending OPTIONS requests
as a result of the qualify setting. This means that if an Asterisk server is
unable to send the packet directly to a peer, it is unable to qualify any
non-inbound registered peer (e.g. a peer SIP Trunk).
This patch grabs the outboundproxy information for a peer when a qualify
attempt is being constructed and, if it finds the information, uses it
when sending the OPTIONS request.
Review: https://reviewboard.asterisk.org/r/3948
ASTERISK-24063 #close
Reported by: Damian Ivereigh
patches:
outboundproxy-dai.patch uploaded by Damian Ivereigh (License 6632)
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Merged revisions 425818 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 425819 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 425820 from http://svn.asterisk.org/svn/asterisk/branches/12
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Merged revisions 425821 from http://svn.asterisk.org/svn/asterisk/branches/13
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@425822
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