With device-initiated call direction, the BlackBerry MVS Client sends the DID/DDI Number as the called party number when it initiates call setup. The DID/DDI Number tells the PBX that this is a BlackBerry MVS call. The DID/DDI Number is configured on the MVS Server panes of the MVS Console.

If your organization uses devices that operate on CDMA networks, device-initiated calling offers optimal performance and reliability for BlackBerry MVS calls.