Polycom VVX - Park and Announce

Asterisk: 13.11.2
CentOS 6

I was able to get call park working by assigning:

Line Key 3: BLF-XFER Park Call 70
Line Key 4: BLF Park1 71
Line Key 5: BLF Park2 72

This is less then ideal since during a call a user has to press the home button to get back to the line key page and select Park Call. The system also does not announce which park the call is parked on.

I tried using the horizontal soft key with the values of: Park Call 70 Active Calls however that did not seem to do anything.

Any help is much appreciated.