My friend has a Galaxy S5. His voicemail is a sexy British woman's voice. How do I get that??

[AC Question]

My friend has a Galaxy S5. His voicemail is a sexy British woman's voice. How do I get that?? He says his phone came like that. I also have an S5 but can't change the greeting voice.

 

[Tim1954]

Isn't voicemail provided by the network?