Done a bit more work on this and have some info that may help others.
The first page of VPK’s works as intended. On the second page, set as follows:
VitalPBX Setting = Actual Phone Setting
- Line = Speed Dial
- Speed Dial = Intercom
- LDAP Search = Forward
- BLF = LDAP Search
- Intercom = Message
- Presence Watcher = Conference
- Transfer = XML Application
- Call Log = Multicast Listen Address
- Call Return = Menu
- Call Park = Information
- Dial DTMF = Call Log
- Eventlist BLF = Multicast Paging
- Menu = None
- Monitored Call Park = Keypad Lock
- Multicast Paging = Redial
- Record = Instant Messages
- Shared Line = BLF
- Speed Dial via Active Account = Record
- Voicemail = Monitored Park
Subsequent pages seem OK.