====== Call Back ======
  * When Phone A call Phone B but Phone B is busy
  * Phone A presses the "Call Back" softkey button
  * When Phone B becomes available, CUCM will notify Phone A

===== Configuration =====

==== Softkey Template ====
  * Under **Device > Device Settings > Softkey Template** add Call Back softkey
  * Add it to on-hook and ring-out call state
{{cucm-cback1.png|}}