Install Telephone

My grandmother lives in a country.She wants to install a telephone at her house,but she does't know what to do.The other day she visited me and asked how much it cost to get a telephone line.What she wants is simple.She wants to know how to communicate with me in a long distance.Where she lives is far from my city.I came up with a simple solution.I bought her a mobile phone,but she had to learn how to use it.She is truly modem country lady.