Well, i guess you are using the default phone button template with 2 lines and 4 speed dials. You can build a new phone button template for your phone to inlcude 4 lines and 2 speed dials or 6 lines, any compbination you like. If you have ccm 3.1/3.2 you can do it in Device->Phone Buttoon Tenplate...just copy the default one and make of it anything you like. Then on the phone configuration assign this template to the phone, reset..and that's it :-)
