The BlackBerry Mobile Voice System uses a security model that is designed to make sure that all communications between the BlackBerry MVS Server the BlackBerry Enterprise Server are encrypted. This model uses the BlackBerry inter-process protocol (BIPP), which is used to transmit data between the BlackBerry Enterprise Server and the BlackBerry MVS.

BlackBerry inter-process protocol encryption (BIPPe) is intended to encrypt inter-process communication between various BlackBerry solution components in order to help prevent outside parties from viewing transmitted data. The encryption is based on a password that the system administrator sets in the BlackBerry Configuration Panel after the BlackBerry Enterprise Server is installed. Before you install the BlackBerry MVS software, you should find out if this password is set and if a password is set, make sure that you use the same password during the configuration of the BlackBerry MVS software. For more information about setting or changing the secure communications password, refer to the BlackBerry MVS Administration Guide.