In the seven hours during which White House records show no phone calls to or from then-President Donald Trump on January 6, 2021, among the calls that are conspicuously absent is one Trump made to then-Vice President Mike Pence that morning from the Oval Office.

(SOURCE) https://www.cnn.com/2022/03/31/politics/mystery-call-gap-trump-jan-6-white-house-phone-logs/index.html