-- Executing Dial("SIP/202.160.161.42-081235d0", "SIP/14024645971@testvoip||r") in new stack
    -- Called 14024645971@testvoip
Sep 28 13:50:30 WARNING[1337]: chan_sip.c:695 retrans_pkt: Maximum retries exceeded on call 5c1a557506399b046b8c10d53f74ea8b@202.160.161.42 for seqno 102 (Critical Request)
  == No one is available to answer at this time
    -- Timeout on SIP/202.160.161.42-081235d0
  == CDR updated on SIP/202.160.161.42-081235d0
    -- Executing Goto("SIP/202.160.161.42-081235d0", "#|1") in new stack
    -- Goto (default,#,1)
    -- Executing Playback("SIP/202.160.161.42-081235d0", "demo-thanks") in new stack
Sep 28 13:50:40 NOTICE[1337]: channel.c:1703 ast_set_write_format: Unable to find a path from gsm to g729
Sep 28 13:50:40 WARNING[1337]: file.c:787 ast_streamfile: Unable to open demo-thanks (format g729): No such file or directory
Sep 28 13:50:40 WARNING[1337]: app_playback.c:83 playback_exec: ast_streamfile failed on SIP/202.160.161.42-081235d0 for demo-thanks
    -- Executing Hangup("SIP/202.160.161.42-081235d0", "") in new stack
  == Spawn extension (default, #, 2) exited non-zero on 'SIP/202.160.161.42-081235d0'
ast*CLI>