What does the landing reminder service mean?

Landing reminder service is a missed message reminder service in communication business. When the mobile phone is turned off or out of service area, if there is an incoming call, the user will receive a short message to remind him of the missed call when the normal call is resumed. The difference is that in the past, it was necessary to edit short messages to inquire about missed calls, but now it is not necessary. Missed calls will be automatically synchronized to your mobile phone. This service is applicable to all mobile phone users, regardless of whether SMS service is enabled or not.