Xi would take a call from Trump if the phone rang - report

This is all childish but I imagine that the bridge eventually gets crossed because both men want to talk and want to lower the risks.

Lingling Wei from the WSJ reports

Early this week, Trump indicated he was waiting for Xi to give him a call. Xi is unlikely to do so but if Trump takes the initiative and makes the call, Xi likely would take it. GAME OF CHICKEN.

I don't know if this is some kind of message sending through the media or speculation but Lingling Wei is generally plugged in.