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GAN Signal Quality Threshold IT policy rule


This rule specifies the signal quality threshold that a BlackBerry® device uses for handover from the WAN to the GAN.

Default value

The default value is a null value. A BlackBerry device chooses a suitable value. This value might be specified by the mobile network provider.


In WAN-preferred mode, if the signal quality drops below the threshold, a BlackBerry device tries a handover to the GAN, if possible. The signal quality is related to the bit error rate and is described in the 3GPP® 5.08 8.2.4 specification as follows:
  • 0: good quality
  • 7: worst quality

Minimum requirements

  • Java® based BlackBerry device
  • BlackBerry® Device Software version 4.2.1
  • BlackBerry® Enterprise Server version 4.1 SP3

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