Hi Jack,
To setup this configuration you require the Programmable Line Key (PLK) feature which was not added to CUCM until the 6.x version release;
Programmable Line Keys
Cisco Unified IP Phones support line buttons (the buttons to the right of the display), which are used to initiate, answer, or switch to a call on a particular line. A limited number of features, such as speed dial, extension mobility, privacy, BLF speed dial, DND, and Service URLs, get assigned to these buttons.
The Programmable Line Key (PLK) feature expands the list of features that can be assigned to the line buttons to include features that softkeys normally control; for example, New Call, Call Back, End Call, and Forward All. When you configure these features on the line buttons, they always remain visible, so you can have a "hard" New Call key.
Programmable line keys support up to 27 features on line buttons
Redial
Yes
Hold
Yes
Transfer
Yes
Privacy
Yes
Forward All
Yes
Meet Me
Yes
Conference
Yes
Park
Yes
Pickup
Yes
Group Call Pickup
Yes
Malicious Caller ID (MCID)
Yes
Conf List
Yes
Remove Last Participant
Yes
QRT
Yes
Call Back
Yes
Other Call Pickup
Yes
Video Mode
Yes
New Call
Yes
End Call
Yes
HLog (Hunt Group)
Yes
Mobility
Yes
Settings
No, uses existing button
Information
No, uses existing button
Services
No, uses existing button
Messages
No, uses existing button
Directories
No, uses existing button
AppMenu
No, uses existing button
Headset
No, uses existing button
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/6_0_1/ccmsys/a08ipph.html#wp1129228
The programmable line feature does not affect the existing softkey functionality. Softkeys still display as required and will continue to be specific to the state of the phone (for example, making a call, being in a call, navigating the Services menu).
If a feature is already assigned to a programmable line key, it can also appear as a softkey (and vice versa).
Hope this helps!
Rob
