The most common question on the #asterisk iRC channel and on mailing lists

The most common question on the #asterisk iRC channel and on mailing lists
seems to be in regards to an error message when retransmit fails. This
is frequently misunderstood as a failure of Asterisk, not a failure of
the network to reach the other party.

This document tries to assist the Asterisk user in sorting out these
issues by explaining the logic and pointing at some possible
causes. Hopefully, we will get other questions now :-)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@132645 65c4cc65-6c06-0410-ace0-fbb531ad65f3