Which call launch option in TMS reserves the room but does not initiate a connection?

Automatic Connect instructs TMS to automatically initiate the call and connect the endpoint at the scheduled start time without any manual intervention.

In Cisco TMS scheduling, the Reservation option marks the room system as busy and unavailable to other bookings during the scheduled time window, preventing double-booking. However, unlike Automatic Connect or One Button to Push, it takes no action to establish an H.323 or SIP connection - participants or administrators must manually dial into the conference. This is useful when organizations want to guarantee endpoint availability without automating the dial-out.

One Button to Push places a connect button on the endpoint's touch panel or interface so a local participant can initiate the call with a single press, which still triggers a connection.

No Connect is not a standard TMS call launch option; the option that performs no connection action while still reserving the resource is specifically called Reservation.