In some cases, the modem might end sleep before the predicted time, for example, due to Universal Integrated Circuit Card (UICC) activity. The application must react to the sleep end notification immediately by activating hardware components and making resources available for the modem.
A delay in reacting to the sleep interrupt notification impacts the modem's and Global Navigation Satellite System (GNSS)'s performance. After modem activity, sleep is not resumed, but a new sleep period starts instead.
%XMODEMSLEEP: <type>,120000%XMODEMSLEEP: <type>,0