Hi,
From Cisco Unified Communications Manager Features and Services Guide, Release 7.0(1)
Setting the Service Parameters
Set the service parameters to define how the Cisco Extension Mobility service will work across a Cisco Unified Communications Manager cluster.
To set the Service Parameters for Cisco Extension Mobility, choose System > Service Parameters in Cisco Unified Communications Manager Administration; choose the server that is running the Cisco Extension Mobility service, and then Cisco Extension Mobility. After you configure the service parameters, click Save.
Enforce Maximum Login Time
Choose True to specify a maximum time for logins. After this time, the system automatically logs out the device. Choosing False, which is the default setting, means that no maximum time for logins exists.
To set an automatic logout, you must choose True for the Enforce Maximum Login Time service parameter and also specify a system maximum login time for the True Maximum Login Time service parameter. Cisco Unified Communications Manager then uses the automatic logout service for all logins.
Best regards,
Stoyan Stoitsev