Merge pull request #990 in FS/freeswitch from ~PIOTRGREGOR/freeswitch:bugfix/FS-9598...

* commit '184368d8f44b1950fff99d3402d413a46a279238':
  FS-9568 [avmd] Fail session creation if can't be started properly
  FS-9596 #resolve [rtp-timeout triggered for on-hold calls with a=inactive]
  FS-9597 #resolve [host_lookup does not resolve v6 addrs] %backport=1.6