I own an iPhone 6 and am struggling with my voicemail. No one has been able to leave me voicemails. When I try to access my voicemail by pressing the icon under phone it calls voicemail then asks who I would like to leave a message for or says to press pound to access your own voicemail. I then press pound and it asks me to enter my mailbox number so I tried my 10 digit phone number and have also tried my phones 4 digit password. It says that both are not valid. I've also tried resetting my network settings and that didn't change anything.
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