US Patent 11917502 Instance-based message delivery

Techniques and architectures enable a wireless communications system to receive and deliver a message for which a user of a mobile device has specified which among multiple devices, all assigned the same phone number as one another, is to receive the message. The mobile device may be the sender or the receiver of the message. The message may be a scheduled message to be delivered on a particular date and time to a contact in an address book of the sender.