You can use call parking to do this. Note that call parking is different than transferring a call. Call park allows phone users to place a call on hold and let another phone user resume the call from any phone or Zoom client. After parking a call, Zoom Phone generates a retrieval code. Any other phone user can use the retrieval code to resume the call. See https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0065454 for more information.