You can use CallPath Server to set the message waiting indicator on any phone, for example, when virtual mailboxes are in use.
To do this, you need the following:
A single-system installation is shown in Figure 1. The steps that the state table performs are shown in Figure 1. For details about the CallPath_SigProc Set_MWI command and its parameters, see the Blueworx Voice Response for AIX: Application Development using State Tables information.