BLF to mintor multple extensions

[vipconsult]

Thanks the BLF works now , but there is another problem when we press the BLF key (line 3 currently) it dials the pick up code + the extension number and what I need is just the pick up code

cc450 is a group extension set to ring when any of the extension from 101 to 107 rings so we BLF the group extension and want to pick a call from any of these extension 101-107 using the group pick up code *8# but the phone dials *8#cc450 instead of just *8#

Can we set this on the phone or the asterisk dialplan/configs needs to be changed?