Sprint Spectrum L.p.

Tony Hoorn

Tom M Sladek

Jason Shaw

Disclosed are methods and systems to authenticate a UE to grant the UE access to a voicemail account. A network entity and a UE may exchange a secure key that may then be used to authenticate the UE with the voicemail server. The exchange of the secure key may be triggered in response to receiving a user request to access a voicemail account at a voicemail server. The UE may then include the received secure key in an origination request seeking to set up a call to the voicemail server, and the voicemail server may authenticate the UE by comparing the secure key received in the origination request with the secure key most recently transmitted to the UE. If the received secure key is the same as the most recently transmitted secure key, the UE is authenticated.

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Bunker Hill, WV, United States of America

Tony Hoorn