A method and system is disclosed for registering a user to a cloud-based application, for enabling user access to a cloud-based application. It may comprise receiving a registration request for user access to the cloud-based application, the registration request comprising an identifier associated with a telephone apparatus. The method may further comprise initiating a communication to the telephone apparatus using the identifier, and detecting receipt of the communication at the telephone apparatus to establish a telephony connection. The method may further comprise, subsequent to detecting receipt of the communication to establish a telephony connection, registering the user to the cloud-based application for enabling subsequent access.