The Avaya PBX driver must be located on a server that can access the Avaya PBX via telnet. This can be either a Metadirectory server (Metadirectory engine, Identity Vault, and Avaya PBX driver) or a non-Metadirectory server (Remote Loader service and Avaya PBX driver. If the driver is not already installed on the server you want to use the integrated installed to install the driver files. For more information, see the Identity Manager 4.0.1 Integrated Installation Guide.