Referral clinic's fax line is often busy/unreachable during business hours, so outgoing faxes fail more often when sent during the day. Sending the same fax after hours has a much higher success rate. Requesting the ability to schedule a fax to go out at a specified future time (e.g., late evening) so the send can be timed for when the receiving line is more likely to be free, rather than only sending immediately.