So I run an office with the newest ip office and j1xx and 96xx series phones. I am thinking of swapping to the Vantage line of phones. I bought a K155 to start experimenting but hit an immediate hurdle. The button layout does not work "user>buttton programming" from Avaya IP office manager. It appears this does not carry over to the new vantage phone/screen line automatically? I need these buttons for to many reason to mention. But most importantly parking, seeing a line on park, and paging to start. Do these really not work or am I missing something? I mean buttons have been a fundamental part of the ecosystem for so long.