Process same as dm setter, just on the phone..
Build rapport
Use setting frame:
Their goals
Where they are currently in working towards them
What obstacles they are facing.
Where they are financially.
Listen to what they say and actively use their answers in your next question.
Give them call time options and send the booking link while on the call.
Setters are info gatherers, closers are info providers.
If asked about cost give very, very broad price range.
Take objections and push them to closers.