Ok, so I have VERY simple setup as I'm still setting up a new CUCM6.0 system.
I have a 7960 on extension 100 and a 7970 on extension 101.
On the 7970 I've setup a BLF-SD for extension 101 and it shows in the button configuration for the phone under the CUCM webpage, but does not show up on the phone, even after a reset and a reboot of the phone.
A normal SD works as a button, but a BLF-SD doesn't even show the SD label, its as though there is no button defined at all.
Under Service Parameter "Default Inter-Presence Group Subscription" I have it set to "Allow Subscription" and under Enterprise Parameter I've set "BLF For Call Lists" to "Enabled".
I've also set the SUBSCRIBE Calling Search Space to the same on each phone.
Still no BLF-SD buttons...
I've read every other BLF problem discussion in NetPro and have folloed everything that everyones suggested.