Indicates the type of the message. Possible values are: – logging (used for messages, that shall be stored in a log file) – information (messages, that shall be presented to the customer on a display; lower priority) – warning (messages, that shall be presented to the customer on a display; medium priority) – alarm (messages, that shall be presented to the customer on a display; high priority; if there is an alarm device in the household, it shall generate an alarm) – emergency (messages, that shall be presented to the customer on a display; very high priority; if there is an alarm device in the household, it shall generate an alarm; additionally, if possible and configured, an emergency call shall be done) – obsolete (previously sent messages, that shall be marked as obsolete)