McDewey

Secure Ad Hoc Conference and Join Authenticated or encrypted phone users can use the Join softkey at a Cisco Unified IP Phone (only phones that are running SCCP) to create or join a secure ad hoc conference. If a user presses Join to add a participant with an unknown security status to an existing conference, Unified Communications Manager downgrades the conference status to unknown. A participant who adds a new member with Join becomes the conference initiator and can eject the new member or any other participant from the conference list (if the Advanced Ad Hoc Conference Enabled setting is True). Secure Ad Hoc Conference and Hold/Resume When a conference initiator puts the conference call on hold to add a participant, the conference status remains unknown (nonsecure) until the added participant answers the call. After the new participant answers, conference status updates in the conference list. If a caller on a shared line resumes a held conference call at another phone, the conference list updates when the caller presses Resume. Meet-Me Conference with Minimum Security Level As administrator, you can specify a minimum security level for a conference when you configure a meet-me pattern or number as nonsecure, authenticated, or encrypted. Participants must meet the minimum security requirement, or the system blocks the participant and drops the call. This action applies to meet-me conference call transfers, resumed meet-me conference calls on shared lines, and chained Meet-Me conferences. The phone that initiates the meet-me conference must meet the minimum security level, or the system rejects the attempt. When the minimum security level specifies authenticated or encrypted and a secure conference bridge is not available, the call fails. If you specify nonsecure as the minimum level for the conference bridge, the conference bridge accepts all calls, and the conference status is nonsecure. The following sections describe secure meet-me conference interactions with other features. Meet-Me Conference and Ad Hoc Conference To add a meet-me conference to an ad hoc conference or add an ad hoc conference to a meet-me conference, the ad hoc conference must meet the minimum security level for the meet-me conference, or the call is dropped. The conference icon can change when the conference gets added. Meet-Me Conference and Barge Unless a barge caller meets the minimum security requirement when the caller barges a meet-me conference participant, the security level of the barged device downgrades, and both the barge caller and the barged call get dropped. Meet-Me Conference and Hold/Resume A phone on a shared line cannot resume a meet-me conference unless the phone meets the minimum security level. If a phone does not meet the minimum security level, all phones on the shared line get blocked when the user presses Resume. Security Guide for Cisco Unified Communications Manager, Release 15 and SUs 161 Basic System Security Meet-Me Conference with Minimum Security Level