added info describing DNS manager

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@114229 65c4cc65-6c06-0410-ace0-fbb531ad65f3
19 years ago · 4d3e086a3e
parent 9facdcb64f
commit 4d3e086a3e
1 changed files with 3 additions and 0 deletions
--- a/3
+++ b/3
@ -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