Do you provide pre-treatment interviews?
From time to time potential clients seek to interview me in person on the phone prior to making their first appointment. I have some sympathy for wanting to speak with a therapist prior to making an appointment. Unfortunately, I can only spend a brief amount of time appoximately 5-10mins for this interview.
I recommend that you meet a therapist that you are considering for treatment for at least three sessions to assess whether you and the therapist have a comfort level with each other, a clear understanding of the reasons why you are seeking therapy, and a common understanding on the methods that will be used to address any problems that you may be having. I do not believe that you will be able to achieve that in a 15 minute phone call.