I called T-Mobile for you and they said that they do, but you would have to call customer care so they could help you set it up.

Rich Brome said:
Does anyone know if T-Mobile USA supports standard GSM call divert for fax calls? I thought they did, but I'm getting a network error when I try to set it, or even check the status... ☹️

If you have the new Comverse voice mail in your location, you will need to call customer care to add the faxmail feature. Otherwise, any fax that comes in to voice mail is automatically stored and you're notified that a fax is waiting. You can either designate a number to be the primary destination for all faxes, or the system will query for a number to send to. When you call voice mail and hear the notifier, press four and select the destination for the fax, then hang up and it will be forwarded to the n...
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