What are Topline's hours? We have a 24 hr answering service available to you. We usually schedule our customers during three time frames: 8a-11a, 11a-2p, and 2p-5p. For an additional cost, we schedule our customers during the 5p-8p time frame. Of course in the case of an emergency, we do not hesitate to come to the aid of our customers in any possible way we can!