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 can I delete my history of allowed calls? How can I delete my blocked call history? How do I clear all items from my Activity List? How do I remove a number from my send to voicemail list? How do I know Name ID is sending a call to voicemail?