/mcpC H A P T E R 32 Extension Mobility • Extension Mobility Overview, on page 403 • Extension Mobility Prerequisites, on page 404 • Extension Mobility Configuration Task Flow, on page 404 • Cisco Extension Mobility Interactions, on page 413 • Cisco Extension Mobility Restrictions, on page 415 • Extension Mobility Troubleshooting, on page 416 Extension Mobility Overview Cisco Extension Mobility allows users to temporarily access their phone settings, such as line appearances, services, and speed dials, from other phones within your system. If you have a single phone that will be used by multiple workers, for example, you can configure extension mobility so that individual users can log in to the phone and access their settings without affecting settings on other user accounts. After a user logs in using extension mobility and if the extension mobility profile is already associated to the application user, then CTI application sends device-related information. CTI application can control a device the user is logged into (using that extension mobility profile) without having to have direct control of the device. Therefore, the recording with the device profile association to the application user should work though they have not associated the device directly. On authentication, if the login profile matches the login device (that is, the user has a user device profile that is configured for a Cisco IP Phone 7960 and logs in to a Cisco IP Phone 7960), Extension Mobility behaves the same way as it does with the older Unified CM versions: • The phone automatically reconfigures with the individual user device profile information. If the user has one user device profile, then the system uses this profile. If the user has more than one user device profile, the user can choose the user device profile that will be used from a list. • The user can access all the services that the user configured on the device profile. If that same user logs into a Cisco IP Phone model where the user does not have a configured user device profile, the login profile will not match the login device on authentication. In this scenario, the system loads the device profile default for that phone model onto the phone, and Extension Mobility works as described here: • The system copies all device-independent configuration (that is, user hold audio source, user locale, userid, speeddials, and directory number configuration except for the setting "line setting for this device") from the user device profile to the login device. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 403