Abstract: A system and method is disclosed herein for providing a bidirectional outage bypass for a hosted voice-over Internet protocol (VoIP) private branch exchange (PBX) system. An outage monitoring system is in communication with both the bidirectional bypass system and one or more bypass enablers that act at the direction of the bidirectional bypass system. The outage monitoring system detects outages and overloads, as well as, network failures between the VoIP PBX and the public switched telephone network (PSTN). The bidirectional bypass system, in response to detection of an outage, determines error-handling procedures for the bidirectional bypass 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.

Abstract: A system and method is provided for two-tiered load balancing on a hosted voice-over Internet protocol (VoIP) private branch exchange (PBX). The system includes a plurality of client devices, at least one device load balancer, and at least one call load balancer. The device load balancer identifies a device group to which each client device belongs; and a cluster of computing resources for processing calls for the device group. The cluster is assigned to the device group based on prescribed conditions. In response to a communications request, call load balancers in communication with the device load balancers dynamically determine if predefined conditions are currently being met within an identified cluster of computing resources. If the predefined conditions are currently being met, then the communications request for a primary client device associated with the request is established via one of a plurality of server nodes within the cluster of computing resources.

Abstract: Systems and methods for providing configurable, reusable software-implemented telephony devices for use in a voice over Internet protocol (VoIP) system. A device platform data store associates account owners with information identifying at least one instance of a telephony device provided on behalf of the account owner. The instances are implemented via a computer program component which comprises (a) reusable device logic (in a CCXML document) defining the behavior of the telephony device and (b) configuration information (also in a CCXML document) comprising specific device properties for the telephony device. In response to an incoming communication, a processor accesses the device platform data store to identify the device logic of a telephony device that is to be activated, and (b) executes the device logic in accordance with the configuration information to provide the specific telephony function of the telephony device for a communication session on behalf of the account owner.