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added info describing DNS manager

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@114229 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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Jeff Peeler
2008-04-17 21:09:37 +00:00
parent 9facdcb64f
commit 4d3e086a3e
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@@ -37,6 +37,9 @@ SIP Changes
* The ATTENDED_TRANSFER_COMPLETE_SOUND can now be set using setvar to cause a given
audio file to be played upon completion of an attended transfer.
* Added DNS manager support to registrations for peers referencing peer entries.
DNS manager runs in the background which allows DNS lookups to be run asynchronously
as well as periodically updating the IP address. These properties allow for
better performance as well as recovery in the event of an IP change.
* Performance improvements via using hash tables (astobj2) and doubly-linked lists to improve
load/reload of large numbers of peers/users by ~40x (for large lists of peers.
Initially, we saw 4x improvement in call setup/destruction, but at the time