Is it possible to have Zoom or Teams set up as an IM option? Also, if possible, is it also possible to limit it to a department? We want one specific department to have the ability to IM (or chat) but not enable it for another department. The general idea is our internal department should be able to have our staff chat, but we don't want our public-facing department allowing external clients to chat. This will cause confusion and allow our clients to bypass our ticket system.