- A BlackBerry Mobile Voice System user has a BlackBerry device that is configured to use the Wi-Fi as the default network and to use the mobile network when the Wi-Fi network is unavailable.
- During a call on a
BlackBerry device using
Voice over Wi-Fi, the user starts to move out of an area with
Wi-Fi coverage. One of the
following actions occurs:
- If the template setting for Network handoff is set to Automatic handoff with user notification, the BlackBerry device automatically sends the request to move the Wi-Fi call to the Voice over Mobile network.
- If the template setting for Network handoff is set to Automatic handoff with user prompt, the BlackBerry device prompts the user to confirm the request to move the Wi-Fi call to the Voice over Mobile network. If the user confirms the request, the device moves the Wi-Fi call to the Voice over Mobile network.
- The device starts a call move request. The device compresses and encrypts the request, and sends it to the BlackBerry Enterprise Server over the Wi-Fi network.
- The BlackBerry Enterprise Server decrypts and decompresses the request and sends it to the MVS BlackBerry Enterprise Server Connector.
- The MVS BlackBerry Enterprise Server Connector sends the request to the MVS Session Manager.
- The MVS Session Manager sends the request using SIP to the PBX over a UDP port.
- The PBX determines that the phone number is an external number and rings the mobile phone number over the PSTN.
- The device answers the Voice over Mobile call on behalf of the user.
The MVS Session Manager instructs the PBX to change the RTP connection from the Wi-Fi network to the mobile network.
- The PBX switches the Wi-Fi call with the mobile call.
- The MVS Session Manager disconnects the Wi-Fi call, and notifies the device that the Wi-Fi call was moved. The user receives a notification that the Wi-Fi call was moved.
- The user continues the call on the device.
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