Transferring a call on a
BlackBerry device using
Voice over Wi-Fi
- A
BlackBerry Mobile Voice System user connects to an organization's
Wi-Fi network and authenticates with the
BlackBerry MVS. During an active call with
Party A, the user wants to transfer the call to Party B. The user presses the
Menu key, clicks Transfer, and dials the extension number of Party B. The user
places Party A on hold.
- The
BlackBerry device starts a call establishment
request, which includes the destination extension number of Party B. The device
compresses, encrypts, and sends the request to the
BlackBerry Enterprise Server
over the
Wi-Fi network.
- The
BlackBerry Enterprise Server decrypts,
decompresses, and sends the request to the
MVS BlackBerry Enterprise Server
Connector over a TCP connection.
- 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
extension number is an internal number and rings the extension number over the
organization's LAN.
- Party B answers the call,
speaks to the
BlackBerry MVS user over an RTP connection that
the PBX opens, and agrees to accept the transferred call from the
BlackBerry MVS user.
- The
BlackBerry MVS user selects the complete
transfer option on the device to complete the transfer.
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