If you want to use a partition to restrict access to the call pickup group, choose the desired partition from the drop-down list box. If you do not want to restrict access to the call pickup group, choose for the partition.
If more than 250 partitions exist, the ellipsis (...) button displays next to the drop-down list box. Click the ... button to display the Select Partition window. In the List items where Name contains field, enter a partial partition name. In the list of partitions that displays in the Select item to use box, click the desired partition name and click OK.
Note Make sure that the combination of call pickup group number and partition is unique within the Cisco CallManager cluster.