You can check your voicemail from another phone when you are outside. For that you have to follow the below steps: First, call your 10 digits mobile number, When a voicemail greeting will come then press the *key After you reach the main voicemail greeting, you have to enter 10 digit phone number and then press the *key Here you have to enter your voicemail password when required Now follow the voice message that will prompt to listen to the messages