I am building a chat client that talks to HipChat's XMPP API. I would like to retrieve 1:1 message history between the user and other's on his contact list. There is a XMPP protocol for doing this, XEP-0136, but it appears that HipChat does not support it. It is not listed on their HipChat XMPP Documentation, and when I try to make that call the server returns an error saying it's not supported.
Is there any way to do this via HipChat's XMPP API? I know their OAuth API supports it, but I don't want to use that.
