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Planning Guide
Configuring call direction
You can configure the BlackBerry® Mobile Voice System to use PBX-initiated calling or BlackBerry device–initiated
calling for incoming calls and outgoing calls.
PBX-initiated calling
You can configure the BlackBerry® Mobile Voice System to use PBX-initiated calling. When a BlackBerry device
receives or sends a call request, the BlackBerry MVS sends a call request to the PBX so that the PBX can make a call
to the device. The device verifies that the call is from the BlackBerry MVS, and it either connects the caller to the
BlackBerry MVS user or initiates an outgoing call to the dialed number.
If your organization uses devices that operate on GSM® networks, PBX-initiated calling offers optimal performance
and reliability for BlackBerry MVS calls.
BlackBerry device–initiated calling
You can configure the BlackBerry® Mobile Voice System to use BlackBerry device–initiated calling. When a device
receives or sends a call request, the BlackBerry MVS sends a call request, which includes the DID/DDI number, to the
PBX. The PBX routes the call to the BlackBerry MVS. The BlackBerry MVS answers the call, verifies that the call is from
the device, and either connects the caller to the BlackBerry MVS user or initiates an outgoing call to the dialed number.
If your organization uses devices that operate on CDMA networks, device-initiated calling offers optimal performance
and reliability for BlackBerry MVS calls.
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Configuring call direction
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