A declassified transcript of a telephone call from 2003 between US president Bush and Russian president Putin, in which Putin tries to persuade Bush not to invade Iraq:
https://nsarchive.gwu.edu/document/33742-document-8-memorandum-telephone-conversation-subject-telephone-conversation
The phone call between Bush and Putin was not via the Hotline (which never was a phone line), but via the so-called Direct Voice Link (DVL). More about the communications between Russia and the US: https://www.electrospaces.net/2021/12/from-hotline-to-first-video-call.html
From the Hotline to the first video call between presidents Biden and Putin

A weblog about Signals Intelligence, Communications Security and top level telecommunications equipment

@Electrospaces Thanks for the repost! This lead me to this older post that has what I find to be one of the most remarkable "bilateral hotlines, internationally" photos. So much going on in this one:
https://www.electrospaces.net/2012/11/bilateral-hotlines-worldwide.html