1NT = (Good 14-17)
2♦ = Both Majors according the partnership agreement but was NOT alerted by West player.
3♣ = Natural
Do you take any action after partners failure to alert and 3♦ bid?If so whats your bid?
Edit due the questions in comments :P.S: It is a Pro playing with a flight C client and the client has forgotten the Cappaletti agreement, so there is NO way they have an advanced agreement on the meaning of 3♦
Benefits include:
Plus... it's free!