Dilla,
My experience with phone healings is that one have a mug/glass/cup/ of yin-yang water at the ready, that one succinctly state one's concern or ask one's question. Master Lin will then charge the water, ask you to drink it and at that point, he will proceed with healing. When he is finished, he will say something like: hang up the phone now and go meditate for a half hour. The session lasts from two to ten minutes - usually around four or five. In my experience it is more about healing than about talking. I would say to just be at peace and quietly ready (through a short meditation or an active exercise), state one's ailment/question, and relax and enjoy the healing!
Perhaps others on the forum have had different experiences! I'm sure they will chime in!
Blessings,
Maura