Historical clue formulations

• Poor cell connection? — 2022-04-09
• What happens when two people miss each other a lot? — 2021-04-09
• Series of missed calls — 2020-04-12
• Frustrating exchange — 2016-09-10
• Failure to communicate? — 2011-01-02
• Game "played" with answering machines — 2002-12-24