Unable to get LTE network or voicemail

[JasonY01]

I'm on the AT&T network and have a international Galaxy Note Edge. I can't seem to get 4G LTE data speeds or my voicemail to work. Ive had 3 or 4 AT&T reps look at it and try but nothing. Has anyone else had this experience and if so how did you get it resolved?

Model # SM-N9150

Thanks in advance.

 

[B. Diddy]

Welcome to Android Central! Have you already checked to make sure the APN settings are correct? Programming non-AT&T devices with the correct APN and MMS data settings - AT&T Support