Not every Jabber entity is a physical person. There are many automatic entities, called servers, services, components, agents, transports and other names. The use of these is described here.
The functions described in this chapter use browse buffers.
Browse buffers are named *-jabber-browse-:-service-*,
sometimes with a numerical suffix. They have the same keybindings as
the roster buffer, and if you call a function operating on a JID while
point is over a JID, that JID will be the default value, so you don't
have to type it or copy it yourself.