New phone can't access voicemail.

[Andrew145]

I recently switched from an iphone 8 to an iphone 12 Pro. I basically just moved the SIM from one phone to another. Now I cannot access my voicemails on the iphone 12 Pro. I can contact the voicemail number and it says I have no voicemails but I know I have voicemails waiting. 

Any advice on what I can try next?

Thank you 🙂

[Andrew145]

I figured out that the problem is the live voicemail option on the phone. Once turned off I could just access my Public Mobile messages. 

[Handy1 · Accepted solution]

@Andrew145  In your phone setting turn off voice voicemail and try again