for that exact setup (inbound booking + an outbound qualifying call on a booked meeting) i'd personally look at vapi or synthflow. both handle natural-language inbound booking and plug into GHL's calendar via the api/webhooks, so the AI can check availability and book live on the call. for the outbound qualify call, trigger bland or vapi off the "appointment booked" event so it rings the invitee. synthflow's probably the quickest to get running if you don't want to build the orchestration yourself!