So with Sametime the question is, “what happens to the chat on the HH?” If I view it on the DT, and maybe even respond to it on the DT, does it disappear from the HH? I know with Lync parts of conversations can disappear from the HH if you only view and respond with the DT. And vice versa. If I do not respond on the DT and only respond on the HH, the chat disappears from my DT.
What behavior are you seeing on the HH?