Stage change depending on work schedule and call status

Congratulations! Unitalk telephony transfers all calls to crm, on the telephony side it is configured that the call goes from manager to manager, then the answering machine says "all operators are busy". Therefore, if the missed call occurred during working hours due to the fact that all operators are busy, then the created process would fall into the "recall" stage, if the client did not listen to the answering machine during working hours, and hung up, so that it would fall into the "reset" stage. If the missed call came during non-working hours, and the client pressed 1 on the answering machine, then he would get to the "call back" stage, and if he did not press 1 on the answering machine, then he would get to the "reset" stage