I operate a business in the states USA n am traveling to Ireland for two weeks. I want to know how to check my business messages off my landline n be able to set appointments from my ipad. They've wifi at the hotel in Ireland ....how do I retrieve n reply to them so I can set appts. for when I return? Is it like a normal call or does caller ID making people feel suspicious? I will decide which paying plan after I receive your response, thank you for your help.