I can call her voice mail any time I feel the need for contact and she will call back within 24 hours. She is awesome about responding and will even call back on evenings and weekends. Usually we talk for 15-30 minutes, depending on what's going on. When things are really rough for me, I might talk to her once a day for a 3-4 days, but it's more typical for me to go weeks or months between calls. She doesn't charge for this and has yet to set a limit on it because I mostly self-regulate as much as possible.

Email is just for scheduling/billing issues and the occasional very quick practical thing (one of us reminding the other about something, etc.).