US Patent 11606451 Smartphone with integrated pager

A smartphone case includes an integrated pager processor and pager antenna. The pager processor interfaces with the smartphone via physical connection such as USB or a wireless connection such as Bluetooth. A battery embedded in the smartphone case powers the pager processor and may be shared with the smartphone via a physical connection. The pager processor may display messages via the smartphone or independently via a speaker embedded in the smartphone case. The smartphone may communicate with a paging source via a cellular network to confirm receipt of one or both of a pager signal or a cellular network signal so that the paging source may produce maps of where various communication methods are useable.