Patent ID: 9025438
Filing Date: 2015-05-05
Classification: H04L,H04M

Abstract:
1. A method for communication failover, the method comprising the steps of: (a) attempting to establish a first telecommunication link over a data network for outbound communication or inbound communication; (b) failing to establish said first telecommunication link over the data network by failing to connect to a session border controller; and (c) upon said failing to establish said first telecommunication link over the data network, automatically establishing a second telecommunication link over a first time division multiplexing (TDM) voice line communicatively coupled to a Class 5 switch for outbound communications, or automatically establishing the second telecommunication link over a second TDM voice line coupled to a media gateway communicatively coupled to the data network for inbound communications; wherein attempting to establish the first telecommunication link over the data network includes attempting to establish the first telecommunication link without connecting via the Class 5 switch to provide a Voice over Internet Protocol (VoIP) connection between a subscriber premise and a VoIP interexchange carrier (IXC) without having to use a public switched telephone network (PSTN), and wherein the second telecommunication link provides a redundant path using the PSTN.