Hi Wilson,
The 7902G does not support Call Pickup. I did some research before they went EoL that shows this but the doc does not exist anymore :( The fact that the 7902 does not have Softkey support and only the listed "fixed" keys speaks to this fact :)
CISCO UNIFIED IP PHONE 7902G FEATURES
The Cisco Unified IP Phone 7902G is easy to use with conveniently placed features, including:
• Fixed feature keys for redial, transfer, conference, and voice-mail access
Calling Features
The Cisco Unified IP Phone 7902G is designed to grow with system capabilities. Features will keep pace with changes through software updates to the phone's Flash memory. Currently available features include:
• Single line/DN (Directory Number)
• Call waiting
• Call transfer
• Three-way calling (conference calling)
• Redial
• Call hold
• Voice-mail access
• Four speed dials configurable in Cisco Unified CallManager
http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps379/ps5065/product_data_sheet09186a0080159de2.html
http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps379/ps5065/prod_qas09186a0080159f73.html
Hope this helps!
Rob
