On Free accounts, WHYPAY? conference rooms are accessed via the 4-digit PIN and everyone enters the same details when dialling in:

With a Pro or Plus subscription, a Moderator PIN is revealed to the conference organiser, which can be entered instead of the standard PIN when dialling in:

The Moderator PIN can be used by more than one participant during a conference call, allowing multiple Moderators per call. As a conference organiser you can share the Moderator PIN directly, or you can specify Moderators when scheduling a conference via your online account:

With the Moderator PIN, conference participants can be easily differentiated into Moderators and Guests. This allows you to take advantage of other Moderator features:

Perform Moderator actions during the call via your telephone keypad. 

Ensure the conference can only begin once a Moderator has dialled in.

Choose whether participants are muted when they join, and whether they can unmute themselves or not.