Odd failed calls in logs

I am running 2 freePBX distro boxes (one live and one backup) and i keep seeing a failed call pop up ever min or so. Why does this keep popping up?

The Log Entry:
[2011-06-30 08:14:00] VERBOSE[25975] pbx_spool.c: – Attempting call on Local/s@tc-maint for application Noop(Time Conditions Override Maintenance Script) (Retry 1)
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [s@tc-maint:1] Set(“Local/s@tc-maint-3f8d;2”, “TCMAINT=RETURN”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [s@tc-maint:2] Gosub(“Local/s@tc-maint-3f8d;2”, “timeconditions,1,1”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [1@timeconditions:1] GotoIfTime(“Local/s@tc-maint-3f8d;2”, “08:00-17:00,mon-fri,,?truestate”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Goto (timeconditions,1,9)
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [1@timeconditions:9] GotoIf(“Local/s@tc-maint-3f8d;2”, “0?falsegoto”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [1@timeconditions:10] ExecIf(“Local/s@tc-maint-3f8d;2”, “0?Set(DB(TC/1)=)”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [1@timeconditions:11] Set(“Local/s@tc-maint-3f8d;2”, “DEVICE_STATE(Custom:TC1)=NOT_INUSE”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [1@timeconditions:12] ExecIf(“Local/s@tc-maint-3f8d;2”, “0?Set(DEVICE_STATE(Custom:TCSTICKY)=INUSE)”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [1@timeconditions:13] GotoIf(“Local/s@tc-maint-3f8d;2”, “0?ext-group,282,1”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [1@timeconditions:14] Set(“Local/s@tc-maint-3f8d;2”, “TCSTATE=true”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [1@timeconditions:15] Return(“Local/s@tc-maint-3f8d;2”, “”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [s@tc-maint:3] System(“Local/s@tc-maint-3f8d;2”, “/var/lib/asterisk/bin/schedtc.php 60 /var/spool/asterisk/outgoing 1”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: – Executing [s@tc-maint:4] Hangup(“Local/s@tc-maint-3f8d;2”, “”) in new stack
[2011-06-30 08:14:00] VERBOSE[25976] pbx.c: == Spawn extension (tc-maint, s, 4) exited non-zero on ‘Local/s@tc-maint-3f8d;2’
[2011-06-30 08:14:00] NOTICE[25975] pbx_spool.c: Call failed to go through, reason (1) Hangup
[2011-06-30 08:14:00] NOTICE[25975] pbx_spool.c: Queued call to Local/s@tc-maint expired without completion after 0 attempts

That is the dialplan to setup call files for FreePBX 2.9 Time Conditions. Its checking to see if it needs to update BLF’s. YOu can change how often it runs in advanced settings or if you are not using a BLF button assigned to a time condition you can turn off the hints on the time conditions.

Thank you Tony. Will this only happen once even if I have several time conditions or will it happen for every time condition I have on the box?