Methods and systems are provided for managing the scheduling of calls and automating the process of making and delivering such calls. Any endpoint (e.g., telephony-enabled) device can be used with a PSTN, cellular, and VoIP network. Different types of devices and interfaces may be used for provisioning users, conferring calling events, scheduling events, and/or delivering calls. Among other things, this increases user mobility. Also, automated retrying and rescheduling of calls, which may use updated data, reduces the likelihood of missed calls.