PerfectServe has two core escalation capabilities. First, notification escalation processes can notify the recipient of unacknowledged messages, and can be sent to multiple devices or end points simultaneously or in succession. Second, PerfectServe provides a backup escalation process to copy messages to other users if unacknowledged by previous recipients within a designated time frame. PerfectServe also has the ability to hold messages for future delivery—say, an after-hours call about a prescription refill that doesn’t need to be delivered immediately.