can not retrieve voicemail i was add to my sons Att acount 9/01/2022
need to set up voicemail message i receive on my phone
to retrieve a voicemail first set a password and greeting
my phone moved from Verizon to Att account add on with my son and daughter in law
And I have no VOICEMAIL no option to sent up voice no voice mail password
Can someone help me please
iPhone 13