title: How to cancel a hangup scheduled with `sched_hangup`?
body: <p>The <a href="https://freeswitch.org/confluence/display/FREESWITCH/mod_dptools%3A+sched+hangup" rel="nofollow noreferrer"><code>sched_hangup</code></a> doc doesn't mention how to do this, and <a href="https://freeswitch.org/confluence/display/FREESWITCH/mod_dptools%3A+sched+cancel" rel="nofollow noreferrer"><code>sched_cancel</code></a> only works for <a href="https://freeswitch.org/confluence/display/FREESWITCH/mod_dptools%3A+sched+transfer" rel="nofollow noreferrer"><code>sched_transfer</code></a> and <a href="https://freeswitch.org/confluence/display/FREESWITCH/mod_dptools%3A+sched+broadcast" rel="nofollow noreferrer"><code>sched_broadcast</code></a>. </p>
  
  <p><sup><a href="https://freeswitch.org/confluence/display/FREESWITCH/mod_dptools%3A+sched+cancel" rel="nofollow noreferrer"><code>sched_cancel</code></a> needs a task or group ID, and only the latter two set the ID in the session, I tested.</sup></p>
  
  <p>Or is there another way to get the task ID?</p>