A system and method is disclosed herein for providing a unidirectional outage bypass for outgoing communications from a session initiation protocol (SIP) device in a hosted Voice-over Internet Protocol (VoIP) private branch exchange (PBX) system. An outage monitoring system is in communication with both a bypass configuration system and one or more bypass enablers that act at the direction of the bypass configuration system. The outage monitoring system detects outages and overloads, as well as, network failures between network components, the VoIP PBX, Client Devices and the public switched telephone network (PSTN). The bypass configuration system, in response to a detection of an outage, determines error-handling procedures for the unidirectional outage bypass system based on bypass configuration data. The bypass enablers forward outgoing communications between a client device and the PSTN, in accordance the error-handling procedures, by bypassing components that are currently experiencing failures or overloads.