Emergency call handling using over-the-top services

Abstract

Methods and apparatus, including computer program products, are provided for emergency call handling. In one aspect there is provided a method. The method may include receiving, at a user equipment, an indication from a network, the indication representative of at least one of whether a carrier grade voice over cellular packet data call is available at a cell serving the user equipment or whether an over-the-top service is available at the cell serving the user equipment; and initiating, by the user equipment based on the received indication from the network, a call via the over-the-top service, when the indication represents the carrier grade voice over cellular packet data call is not available at the cell serving the user equipment and the over-the-top service is available at the cell serving the user equipment. Related apparatus, systems, methods, and articles are also described.

Dependencies are inferred from the claim text.