Abstract: A network service may receive an authentication request from a subscriber device, the authentication request including a user credential and a device identifier of the subscriber device. The service may validate the authentication request based at least in part on the included user credential, and when the authentication request is validated, provide an authentication reply to the subscriber device indicative of allowance of the subscriber device to access the service, the authentication reply including a hash token keyed to the device identifier of the subscriber device for use in validation of subsequent authentication requests. The service may further generate a second hash token based on the device identifier of a subsequent authentication request; validate a subsequent authentication request according to the hash token and the second hash token; and when the subsequent authentication request is validated, allowing the subscriber device to access the service.

Abstract: A mobile station provides an Interactive Multimedia Response to a user's call. The mobile station detects when a user dials a predetermined telephone number. In response, at least one visual object representing available services is displayed. In response to a user's input, at least one visual object representing a service selected by the user may be displayed. In a Call Intercept Mode, the mobile station detects a telephone number entered by the user to initiate an outgoing call to a destination that provides account-specific data. The mobile station then conducts a data communication with a self service server of the communication service provider to obtain the account-specific data corresponding to the detected telephone number. Upon receiving the account-specific data, at least one visual object including the requested account-specific data is displayed on the mobile device.

Abstract: A network service may receive an authentication request from a subscriber device, the authentication request including a user credential and a device identifier of the subscriber device. The service may validate the authentication request based at least in part on the included user credential, and when the authentication request is validated, provide an authentication reply to the subscriber device indicative of allowance of the subscriber device to access the service, the authentication reply including a hash token keyed to the device identifier of the subscriber device for use in validation of subsequent authentication requests. The service may further generate a second hash token based on the device identifier of a subsequent authentication request; validate a subsequent authentication request according to the hash token and the second hash token; and when the subsequent authentication request is validated, allowing the subscriber device to access the service.