Pyongyang recently said it was working on a plan to launch a medium-range ballistic missile near the USA territory of Guam, some 3,200 km from North Korea.
Still, he said the USA is edging closer to war with Kim because of his nuclear provocations.
"Well, it depends on the nature of the threat, right?" he said on ABC's "This Week".
"We've had back-channel communication for decades".
It prompted Trump to warn that he would unleash "fire and fury" on North Korea if it did not stop its threats to the US. "And it's growing every day, with every missile test, with the ... nuclear tests". "Kim Jong Un - the world always thought he was not a responsible leader".
"That back channel can lead to a formal agreement that will resolve this crisis", said Perry, who in the waning days of the Clinton administration almost secured a missile agreement with North Korea.
"We're not closer to war than a week ago".
North Korean state-media on Wednesday showed images of a mobilisation of tens of thousands of citizens parading through Kim Il-sung square in Pyongyang carrying banners in defence of leader Kim Jong-un and denouncing the latest United Nations sanctions to punish the regime for its missile launches.
"There's nothing imminent today", Pompeo told Chris Wallace on "Fox News Sunday", asked what kind of threat the U.S.is facing.
"There are phone-calls that could be made, discussions that could be held", he said. "But make no mistake about it, the continuation, the increased chance that there will be a nuclear missile in Denver is a very serious threat and the investigation is going to treat it as such".
"At the end of the day if the North Koreans evolve into a fully replete nuclear weapons state with ICBMs (intercontinental ballistic missiles) with miniaturised warheads on top then, well, the Chinese view is, the USA will then just have to accept that reality", Mr Rudd said.
Now it was on countries like China and Russian Federation along with USA allies like South Korea and Japan to work in tandem to get nuclear weapons out of the region.