Voicemail is a convenient feature that allows you to receive and store voice messages when you are unable to answer your phone. You can check your voicemail from any phone, including a landline or another mobile phone. Here are the steps on how to check your voicemail from another phone using T-Mobile:
1. Dial your own phone number from the other phone.
2. When you hear your voicemail greeting, press the * key.
3. Enter your voicemail password.
4. You will now be able to listen to your voicemail messages.