In general, this reason indicates that the requested account name or other identification could not be used due to conflict with another connection.
It can be divided into three cases: If the status change is from Connecting to Disconnected and the 'register' parameter to RequestConnection was present and true, the requested account could not be created on the server because it already exists. The equivalent D-Bus error is org.freedesktop.Telepathy.Error.RegistrationExists. If the status change is from Connecting to Disconnected but the 'register' parameter is absent or false, the connection manager could not connect to the specified account because a connection to that account already exists. The equivalent D-Bus error is org.freedesktop.Telepathy.Error.AlreadyConnected. In some protocols, like XMPP (when connecting with the same JID and resource as an existing connection), the existing connection "wins" and the new one fails to connect. If the status change is from Connected to Disconnected, the existing connection was automatically disconnected because a new connection to the same account (perhaps from a different client or location) was established. The equivalent D-Bus error is org.freedesktop.Telepathy.Error.ConnectionReplaced. In some protocols, like MSNP (when connecting twice with the same Passport), the new connection "wins" and the existing one is automatically disconnected.