Your phone books the job while you're on a job.
The call gets answered. The job gets booked for real. A confirmation email goes out. Help the customer in front of you. The phone still books.
The call gets answered. The job gets booked for real. A confirmation email goes out. A bird's-eye map shows where the jobs and customers are. The built-in CRM takes the same job from estimate to invoice to paid through Stripe. Help the person in front of you. The agent helps the one on the phone and books the visit.