How do I delete the history of calls sent so voicemail? November 16, 2018 22:51 Updated Follow Unfortunately, the history of calls that have been sent to voicemail cannot be deleted. Related articles How do I know Name ID is sending a call to voicemail? How can I delete my history of allowed calls? How do I add a number to my always allow list? Why do certain numbers not display a name when I attempt a Number Lookup?