JID:
The address of an XMPP entity, called Jabber Identifier or Jid, acts like an IP address. A valid Jid includes the node name, domain name resource name, in the format: Jid=[node ' @ ']domain['/' resource]
Namespace for XMPP protocol:
Jabber:iq:private-Private data storage for local user private settings, such as user notes.
Jabber:iq:conference--General meetings for information sharing among multiple users
jabber:x:encrypted--encrypted message for sending encrypted messages
Jabber:x:expire--Message termination
Jabber:iq:time--Client time
Jabber:iq:auth-Simple user authentication, typically used for authentication between servers or between servers and clients
Jabber:x:roster--Internal roster
Jabber:x:signed-The online status of the tag
Jabber:iq:search-User database query for sending query requests to the server
Jabber:iq:register--Registration request for user registration related information
Jabber:x:iq:roster--roster management
Jabber:x:conference-Meeting Invitation to send a meeting notice to the user attending the meeting
Jabber:x:event--Message events
Vcard-temp-Temporary vcard for setting the user's avatar and nickname, etc.
Xmpp-jid and XMPP namespaces