BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 illustrates a wireless communication system;
FIG. 2 is a block diagram of a wireless device vibration controller;
FIG. 3A illustrates a graph of a first drive voltage pattern for a vibration unit;
FIG. 3B illustrates a graph of a second drive voltage pattern for a vibration unit;
FIG. 4 illustrates a configuration process for configuring a vibration controller;
FIG. 5 illustrates a process for intelligent vibration (IV) operation for receiving incoming calls; and
FIG. 6 illustrates a process for intelligent vibration (IV) operation for receiving incoming messages.