Block Pending CA / PC

Enables radio-user call blocking for Call Alert or Private Call. The first Call Alert or Private Call data received by the unattended radio is held by the radio. Successive Call Alert or Private Call data is ignored unless the source information of the call is identical to the original source data received. This feature applies on a radio-wide basis.

When disabled, the last Call Alert or Private Call data received is the call data that is stored. Therefore, previously stored call information is overwritten in the radio's memory.