Presence icons

Every user connected to the system has his own status, his Presence. This information is established according to defined rules from the status of several services: Telephone status (telephone service), calendar status (calendar service), logged on/ logged off (system service) and manually entered user status.
The presence therefore dynamically informs of the availability of a communication partner depending on the current status of the various services.

Possible presence states

Status color	Meaning
	Available
	Busy
	Out of office
	Inactive
	Do not disturb
	Presence information unavailable

In addition to this presence information the following additional icons are used in estos ProCall:

Icon	Meaning
	If a contact is not logged on to a server their status is displayed with a gray symbol.
	If a contact receives a call on one of their lines their status flashes red/orange

Optionally, a user can set, in his or her presence profile, an availability which is signaled to other users. This availability can describe the following statuses:

Icon	Meaning
	Break: The user is currently on a break and probably cannot be reached.
	Business trip: The user is currently on the road and may not be available.
	Home Office: The user is working from home and can be reached there.
	Vacation: The user is currently on vacation and is therefore unavailable.

Besides to the contact-based presence information the telephone lines shows a different status:

Icon	Meaning
	Phone line ready, no active conversation
	Active external call
	Changing between red and orange - incoming ringing
	Line faulty
	Active call redirection
	Active call protection (the icon for the redirection is not displayed with active call protection).