Hi Kasey,
Just to add a note to Brandons good info. The feature that addresses this exact issue is avaiable in CCM 4.2 and 6.x trains;
Call Pickup Notification
This new feature allows users to receive an audio and/or visual alert when a call rings on a phone in pickup groups in which they are a member. For multiple line phones, the alert is available for pickup groups associated with the primary line only.
You can configure the following notification parameters in the Call Pickup Group Configuration window:
Type of notification (audio, visual, both, or neither)
Content of the visual notification message (called party identification, calling party identification, both, or neither)
Number of seconds delay between the time the call comes into the original called party and the notification to the rest of the call pickup group members
From this 4.2.1 doc;
http://www.cisco.com/en/US/products/sw/voicesw/ps556/prod_release_note09186a00805f1470.html#wp2448574
Hope this helps!
Rob
