According to a video tweeted by the Guam News on Friday, Calvo while talking to Trump via an office phone switched the call to speaker phone to enable viewers hear the conversation clearly, Xinhua news agency reported.
"The island of Guam made rare headlines this week when North Korea, responding to blustery language from President Trump, threatened to fire four ballistic missiles into waters near the American territory's shores", reads the lead to the story. The President and Chief of Staff General John Kelly called Gov. Eddie Baza Calvo and assured him that they are behind Guam 1,000-percent.
"We'll see how it all works out, but you're not going to have a problem and I just wanted to pay my respects and say you seem like a hell of a guy".
Trump continued to exchange pleasantries with Calvo, saying that the governor had "become famous", and suggesting that he would visit the United States territory in the future. "Some Guam residents told reporters that they anxious what might happen if North Korea's leader, Kim Jong-un, were actually to follow through".
The sheet urges people to take cover as quickly as possible, "under concrete structures or below ground if possible".
Mr Calvo agrees: "It's paradise".
"You know, they're showing so much, it's such a big story in the news and it just looks like a lovely place", he said. "They should have had me eight years ago, or somebody with my thought process".
Don't worry about a thing.
"We are the best in the world by a factor of five", he says.
Trump has warned the North that it would "truly regret" attacking the USA, and that the United States military is "locked and loaded".
A separate statement from the North Korean General Staff released on the same day mentioned comments by Senator Lindsey Graham and Joint Chiefs Chairman James Dunford and threatened to "turn the USA mainland into the theater of a nuclear war" with a "pre-emptive retaliatory operation of justice" but did not refer to President Trump's comments.
Earlier, President Trump said the USA military was "locked and loaded" to deal with North Korea, should the need arise, as the countries' leaders increased bellicose rhetoric this week.