Hi Tony,
My understanding is that the "Personal" Speed dials can only be changed via the User's IP Phone except for User's who are running Extension Mobility (who can use the GUI interface). There is some excellent info in the last doc attached below;
To use a phone user account in the Cisco Unified CME GUI to configure speed dials on a phone that is enabled for Extension Mobility, Cisco Unified CME GUI 4.2.1 or a later version must be installed on the Cisco router.
Cisco Unified CME GUI Support
The Cisco Unified CME GUI provides a web-based interface to manage most system-level and phone-based features. In particular, the GUI facilitates the routine additions and changes associated with employee turnover, allowing these changes to be performed by nontechnical staff. The GUI provides three levels of access to support the following user classes:
•System administrator-Able to configure all system-level and phone-based features. This person is familiar with Cisco IOS software and VoIP network configuration.
•Customer administrator-Able to perform routine phone additions and changes without having access to system-level features. This person does not have to be familiar with Cisco IOS software.
•Phone user-Able to program a small set of features on his or her own phone and search the Cisco Unified CME directory. In Cisco Unified CME GUI 4.2.1 and later versions, phone users can use the GUI to set up personal speed dials for an Extension Mobility phone. The same credential for logging into an Extension Mobility phone can be used to log into the Cisco Unified CME GUI.
The user name parameter of any authentication credential must be unique. Do not use the same value for a user name when you configure any two or more authentication credentials in Cisco Unified CME, such as the username for any Cisco United CME GUI account and the user name in a logout or user profile for Extension Mobility.
The Cisco Unified CME GUI uses HTTP to transfer information from the router to the PC of an administrator or phone user. The router must be configured as an HTTP server, and an initial system administrator username and password must be defined from the router command-line interface (CLI). Additional accounts for customer administrators and phone users can be added from the Cisco Unified CME router using Cisco IOS software commands or from a PC using GUI screens.
Enabling the GUI
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmegui.html
Configuring Speed Dial
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmespeed.html
Hope this helps!
Rob
