Mine calls when she has the opportunity to get my message and when she has the opportunity to call. She's pretty busy with her practice and she is a cadidate at the psychoanalytic institute and I image has a rich full life as well.

She usually calls within hours. Sometimes she calls to tell me she received my message and will have a time to call later in the day at a specified time. She's so caring and considerate that way.

I agree with the others that this is something to talk to your T about. All T's are individuals and would have their own thoughts and procedures about phone calls.