: Find the contact or number in the list and tap the X , minus (-) , or Unblock button next to it to restore communication. Temporary Caller ID Unblocking
Upon investigation, I discovered that the number had been accidentally added to my personal "Reject List" on the desktop handset. I accessed the phone settings via the hardware interface, located the blocked number in the call history, and selected the option to "Remove from Block List." unblocking number