/mcpInteraction Feature For extension mobility, the device profile settings include do not disturb (DND) incoming call alert and DND status. When a user logs in and enables DND, the DND incoming call alert and DND status settings are saved, and these settings are used when the user logs in again. Note When a user who is logged in to extension mobility modifies the DND incoming call alert or DND status settings, this action does not affect the actual device settings. Do Not Disturb Cisco Extension Mobility supports the intercom feature. To support intercom, Cisco Extension Mobility uses a default device that is configured for an intercom line. An intercom line is presented on only the default device. You can assign an intercom line to a device profile. When a user logs in to a device that is not the default device, the intercome line is not presented. The following additional considerations apply to intercom for Cisco Extension Mobility: • When Unified Communications Manager assigns an intercom line to a device and the default device value is empty, the current device is selected as the default device. • When AXL programatically assigns an intercom DN, you must update the intercom DN separately by using Cisco Unified Communications Manager Administration to set the default device. • When you delete a device that is set as the intercom default device for an intercom line, the intercom default device is no longer set to the deleted device. Intercom Cisco Extension Mobility Supports IPv6. You can use phones with an IP addressing mode of IPv6 or dual-stack (IPv4 and IPv6). Internet Protocol Version 6 (IPv6) If you select On for the Always Use Prime Line parameter in the Device Profile or Default Device Profile Configuration window, a Cisco Extension Mobility user can use this feature after logging in to the device that supports Cisco Extension Mobility. Prime Line Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 414 Receiving Calls Cisco Extension Mobility Interactions