Time of Day enables the SBC to select a route for a call based on the local time and date; this option allows each specific route to optionally be selected based on the current local system time.Time of Day tables define a group of Time of Day entries which specify times and days of the week. Once this information is configured, you can optionally reference one of these from each call routing entry (via Call Routing Table). The Call Routing entry will then search every entry in the Time of Day tables for a match; if one matches, and the current local system time is within the date and time specified with the entry, the call route can be used.
This feature is used in scenarios where calls should be routed differently depending on the local time of day. For example, an office that is closed during certain hours may want to divert all incoming calls to voicemail or an answering service rather than routing them to the intended recipient. Using a call route entry that has a time of day table applied to it, allows the user to route calls to this different destination only during the hours when the office is closed. Another possible use case is routing calls to different PSTN providers based on the time of day (which takes advantage of time of day cost differences).