Voice mail off Dial 1760
Voice mail on Dial 1750
If you want a miss call alert (So you receive a text to let you know that some one has tried to dial you and you didnt answer, you wernt in range, phone switched of or you was on another call then dial 1710 (Remember changing to miss call alert will automaticaly switch voice mail of.
If you want to extend your ring tone then dial the followingf
And Dial 1710 to turn if off