Whenever someone calls me they can't leave a voicemail. It asks them to give a mailbox number or press pound to access my mailbox? Luckily they don't have my password. When I call to check voicemails it does the same, only after I press # to access my voice mailbox it then asks me to enter a mailbox number. I don't know what my mailnox number is, I thought pressing # took me to my box, that's what it said it would do. I have gone through the voicemail setup process, In fact I have had voicemail working fine for years up until a couple of moths ago. What am I missing?