Phone consultations are charged by the hour. The fee is $200 whether the call is 15 minutes or one hour. If you need more time, you will need to register again.
For security reasons, I prefer to conduct these phone conversations using Facebook's Messenger. In this way, I can also take international calls without incurring long distance charges. Another benefit is that I can also look at images, documents, etc., if they are relevant. You may need to friend me if we aren't friends already in order to access Messenger.
If you have trust and security issues with Facebook, then email me and we can discuss other options.
Please email me at email@example.com if you have questions.