Process flow: Receiving a call on a BlackBerry device


This diagram shows the elements that are described in the following process flow.

This process flow applies to a user who receives a call on a BlackBerry® device and the BlackBerry® Mobile Voice System is configured to have the PBX start the call.

  1. A caller within an organization dials the extension of a BlackBerry MVS user.
  2. The PBX sends the call to the media gateway.
  3. The media gateway converts the call to a SIP call and sends it to the BlackBerry MVS Session Manager over the LAN.
  4. The BlackBerry MVS Session Manager sends the SIP call to the BlackBerry MVS Call Processor over a UDP port number or TCP connection.
  5. The BlackBerry MVS Call Processor checks the database and verifies that the DNIS number is associated to a registered user. The BlackBerry MVS Call Processor checks the database for the phone numbers that are associated to the user's accounts and how to start the call with the BlackBerry device. After the BlackBerry MVS Call Processor identifies that the PBX should start calls to the BlackBerry device, the BlackBerry MVS Call Processor creates a message, which includes an ANI from the pool of ANI numbers, and the name and phone number of the caller. The BlackBerry MVS Call Processor sends the message to the BlackBerry MVS Connection Service over a TCP connection.
  6. The BlackBerry MVS Connection Service sends the message to the BlackBerry® Enterprise Server over a UDP port number.
  7. The BlackBerry Enterprise Server compresses and encrypts the message, and sends it to the BlackBerry device over the wireless network.
  8. The BlackBerry device sends a delivery confirmation to the BlackBerry Enterprise Server, and decrypts and decompresses the message.
  9. The BlackBerry MVS Client verifies that the message is from the BlackBerry MVS Server, and sends a confirmation to the BlackBerry MVS Call Processor.
  10. The BlackBerry MVS Call Processor creates a SIP call to forward the incoming call to the user. The BlackBerry MVS Call Processor sends the SIP call to the BlackBerry MVS Session Manager.
  11. The BlackBerry MVS Session Manager sends the SIP call to the media gateway over the LAN.
  12. The media gateway converts the SIP call to ISDN, and sends the call to the PBX.
  13. The PBX sends the call to the BlackBerry device.
  14. The BlackBerry MVS Client verifies that the ANI is the same as the ANI from the original message, and displays the caller name and phone number from the message to the user.
  15. The user answers the call and voice communication occurs.

Index


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