Before you begin

You must have the shared line configured for the call bridge to be invoked. See how to configure shared lines before you enable the call bridge warning tone to play.


Sign in to Control Hub, then under Management, click Users.


Select a user and click the Calling tab.


Go to Between-user Permissions, and click Call Bridging Warning Tone.


Turn on Call Bridging Warning Tone, and then click Save.

By default, this feature is enabled.

For more information on call bridging on an MPP shared line, see Shared lines on your multiplatform desk phone.

For more information on call bridging on a Webex App shared line, see Shared line appearance for WebexApp.