[Asterisk-Dev] Nonexistent schedule entry

[Matthew Boehm]

Ha! I caught one.

  -- Executing Goto("Zap/1-1", "5000009|2815692751|1") in new stack
  -- Goto (5000009,2815692751,1)
  -- Executing Dial("Zap/1-1", "SIP/backoffice11|15") in new stack
  -- Accepting call from '5126800411' to '2815692751' on channel 0/1, span 1
  -- SIP Seeding peer from astdb: 'backoffice11' at
backoffice11 at 216.54.13.154:10082 for 3600
  -- Called backoffice11
Jun  2 23:46:43 NOTICE[12750]: chan_sip.c:9625 sip_poke_noanswer: Peer
'backoffice11' is now UNREACHABLE!  Last qualify: 0
Jun  2 23:46:45 WARNING[12750]: chan_sip.c:887 retrans_pkt: Maximum retries
exceeded on call 322cc5a47b644ba71572e3815e259474 at 216.54.14.6 for seqno 102
(Critical Request)
Jun  2 23:46:45 WARNING[12750]: chan_sip.c:887 retrans_pkt: Maximum retries
exceeded on call 338fc8517acfff40007742bb4209eb4d at 216.54.14.6 for seqno 102
(Non-critical Request)
  == No one is available to answer at this time (1:0/0/0)
  -- Executing VoiceMail("Zap/1-1", "u11 at 5000009") in new stack
  -- Playing '/var/spool/asterisk/voicemail/5000009/11/unavail' (language
'en')
Jun  2 23:46:45 NOTICE[12750]: sched.c:290 ast_sched_del: Attempted to
delete nonexistent schedule entry 219!
  -- Channel 0/1, span 1 got hangup request
  -- Hungup 'Zap/1-1'


What causes these? Should I be worried? Last time I wasn't paying attention
asterisk crashes on these.

-Matthew