Check my voicemail

When you receive a new voicemail, a notification briefly appears at the top of Start, and a new voicemail icon, with the number of new missed calls, displays on the Phone tile.

To set up voicemail on your phone

• 1
  On Start, tap Phone  > Voicemail .
• 2
  Follow the instructions to set up your voicemail and record a greeting.
• 3
  Tap End call to hang up.

To check your voicemail

• 1
  On Start, tap Phone  > Voicemail .
• 2
  When prompted, enter your voicemail password.
• 3
  Follow the instructions in your voicemail to listen to, replay, delete, and manage your voicemails.
• 4
  Tap End call to hang up.

Tips

• •
  With some mobile operators, you can also check your voicemail by calling your mobile phone number from your Windows Phone.
• •
  You can also check your voicemail by tapping Phone  on Start, tappingKeypad  , and then tapping and holding 1 on the keypad.

To change the voicemail number

• 1
  On Start, tap Phone  > More  > Call settings.
• 2
  Tap the Voicemail number box.
• 3
  Tap the Edit voicemail number box, use the keypad to enter a new voicemail number, and then tap Save.

Notes

• •
  Your mobile operator should automatically set the voicemail number, and you shouldn't need to change it.
• •
  To make and receive phone calls, you must have an account with a mobile phone operator, as well as a working cellular network in your current location.

Related topics

• •
  Make and receive phone calls
• •
  Use my phone for conference calls

Post Taken From : http://www.microsoft.com/windowsphone/en-us/howto/wp7/start/check-my-voicemail.aspx