How do I set a voicemail on my smartphone?
use google voice.
choose your smart phone to set up:
voice mail on iphone 4s:
can you name your smart phone, if this did not help ?
T-Mobile, HTC 4G MyTouch brand
Hello, what kind of smartphone do you have? It is kind of hard to give instructions without knowing your phone's model and brand. Your best option would be to check the phone's manual.
T - Mobile HTC My Touch Brand
Hello, check the instructions on following link: