Account owners and admins can enable a privacy feature for shared line groups or shared line appearance (call delegation). This allows shared line group and shared line appearance members to lock the call, which prevents others from picking up a held call, listening, whispering, barging, or taking over the call.

This article covers:

• How to enable or disable privacy mode for shared line groups
• How to enable or disable privacy mode for shared line appearance (call delegation)

Prerequisites for enabling or disabling privacy mode

• Account owner or admin privileges
• Zoom Phone license
• Shared line groups or call delegation set up

Note: Phone users must have the Zoom desktop client or mobile app, 5.7.6 or higher to enable privacy mode (lock the call). This feature is not supported on desk phones.

How to enable or disable privacy mode for shared line groups

1. Sign in to the Zoom web portal.
2. In the navigation menu, click Phone System Management then Shared Lines.
3. Click the Shared Line Groups tab.
4. Click a shared line group's name.
5. Next to Privacy, select the check box to allow members to lock the call while in a call.
   Locking the call will prevent the following: 
   
   • If a member places the call on hold, other phone users can't pick up the held call.
   • Other phone users can't monitor the call (listening, whispering, barging, or taking over).

How to enable or disable privacy mode for shared line appearance (call delegation)

1. Sign in to the Zoom web portal.
2. In the navigation menu, click Phone System Management then Shared Lines.
3. Click the Shared Lines Appearance tab.
4. Click Details next to a call delegation setup.
5. Next to Privacy, select the check box to allow the delegator to lock the call while in a call.
   Locking the call will prevent other phone users from either picking up a call that has been put on hold or monitoring it if the delegator places the call on hold.