Long Distance . May I help you ?   Yes . I'd like to place an overseas call to London . Can I dial direct ?   No , sir . I'm afraid not .   Oh , I see . How about the charges ?   The charges vary according to the types of call you make . The cheapest is a station-to-stcrtion call , then a person-to-person call . The mini charge will apply for the first three minutes , then each additional minute will be charged .   Oh , let me think of it ... Could you put through a collect cal for me ?   Certainly . Who are you calling ?   It's a Mrs . Peters , Marilyn Peters .   And what's the number you are calling ?   It's London , 9981-6432 . 