Abstract: Systems and methods of fallback electronic communications are disclosed. A system is configured to receive a communication campaign including data identifying at least one communication channel and implement a fallback state machine having a first composite state corresponding to the at least one communication channel. An initial electronic communication is transmitted via the at least one communication channel and an initial timer having a first predetermined timeout period is implemented. When a confirmation is received prior to expiration of the initial timer, the fallback state machine transitions to a complete state. When the confirmation is not received prior to expiration of the initial timer, a first composite fallback state corresponding to a first set of fallback communication channels is implemented and a first fallback electronic communication is transmitted via the first set of fallback communication channels.

Abstract: Systems and methods of fallback electronic communications are disclosed. A system is configured to receive a communication campaign including data identifying at least one communication channel and implement a fallback state machine having a first composite state corresponding to the at least one communication channel. An initial electronic communication is transmitted via the at least one communication channel and an initial timer having a first predetermined timeout period is implemented. When a confirmation is received prior to expiration of the initial timer, the fallback state machine transitions to a complete state. When the confirmation is not received prior to expiration of the initial timer, a first composite fallback state corresponding to a first set of fallback communication channels is implemented and a first fallback electronic communication is transmitted via the first set of fallback communication channels.

Abstract: Systems and methods for managing the timeout of executable task are disclosed. A task is obtained for execution, a timeout associated with a state of the task is determined, and a timeout task is allocated to a slot of a first timing wheel based on the timeout. Each of the slots of the first timing wheel corresponds to an increment of a first period. When the increment corresponding to slot of the first timing wheel expires before an event associated with the state has been received, the timeout task is deallocated from the first timing wheel, a residual time is determined, and the timeout task is allocated to a slot of a second timing wheel based on the residual time. Each of the slots of the second timing wheel correspond to an increment of a second period.