/mcpDescription Field To use a partition to restrict access to the Meet-Me number or pattern, choose the desired partition from the drop-down list box. If you do not want to restrict access to the Meet-Me number or pattern, choose <None> for the partition. You can configure the number of partitions that are displayed in this drop-down list box by using the Max List Box Items enterprise parameter. If more partitions exist than the Max List Box Items enterprise parameter specifies, the Find button is displayed next to the drop-down list box. Click the Find button to display the Find and List Partitions window. Note To set the maximum list box items, choose System > Enterprise Parameters and update the Max List Box Items field under CCMAdmin Parameters. Note Make sure that the combination of Meet-Me number or pattern and partition is unique within the Unified Communications Manager cluster. Partition Choose the minimum Meet-Me conference security level for this Meet-Me number or pattern from the drop-down list box. • Choose Authenticated to block participants with nonsecure phones from joining the conference. • Choose Encrypted to block participants with authenticated or nonsecure phones from joining the conference. • Choose Non Secure to allow all participants to join the conference. Note To use this feature, ensure that you have a secure conference bridge that is configured and available. Minimum Security Level Meet-Me Conferencing Restrictions Unified Communications Manager supports a maximum of 100 simultaneous Meet-Me conferences for each Unified Communications Manager server. After the maximum number of participants that is specified for that conference is has been exceeded, no other callers can join the conference. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 236 Conferencing Features Meet-Me Conferencing Restrictions