Lan based Office messenger system

Design an office messaging system, like a compact messenger system, which will allow staff
members to send messages to each other that can be retained, deleted, archived, and organized by
both the sender and receiver. The system can function on a peer-to-peer basis, or through a
centralized message server. It will utilize the office LAN – ensuring that messages do not leave
the office environment. Individuals can be assigned to one or more groups, allowing messages to
be sent to a single individual, several individuals, one or more groups, or broadcast to the entire
office.
As a minimum, the messaging system should provide the following features:
• Identify all members of the messaging system
• Indicate the status of each member (ie. Offline or Connected)
• Ability of the user to set individual status (ie, online, away, busy, etc...)
• Provide a facility for the creation of short messages (you must decide on the feasible size)
• Display a pop-up message to recipient upon arrival of message
• Store all incoming messages in message Inbox.
• Store copies of all sent messages
• Once read, messages can be retained or removed from the Inbox.
• Backup and restore capabilities