Its not T Mobile voice mail. I can spoof the number and it rings and rings. I call it from my t mobile and its not in service. Dont call me, its shows i call it. I can text it and it recieves my text. We use Metropcs which rides tmobile. We're gonna sue and change to At&t.
When a symbol appears at the top of your phone and you drag down it shows that you have a voicemail. You can tap it to play the vm. It dials the 469-531-9999 number. It appears on your T-Mobile/Metro PCS bill when you access the vm this way instead of accessing it via Visual Voicemail icon.