TeleReminder
The message that arrives in time to be useful.
Personal
Business
An exam, an interview, a train, a payment, an appointment: give it a time and what to say, and the reminder counts back from the thing itself. One that would arrive after the event is not sent, because a reminder about something that already happened is just noise from a machine.
For a business
Fewer people who simply forgot — which is most of the people who do not turn up.
Build on it
Every endpoint sits under /api/v1/reminders, and every agent tool is
named telenaas_telereminder_*. A key scoped to TeleReminder reaches those and nothing else — reads included.
What it is billed on
telereminder.message — carried media, not seats. Adding somebody to the team does not add to the bill.