Auto dialer for phone, suitable for almost any long distance call prepaid cards system, including prepaid long distance call service and prepaid phone card service. It is designed for straight line telephone, bloc phone or switch machine, virtual net phone, ISDN, ADSL etc. It is suitable for company, home, switch and extension usage. Also it can be used for 200, 300 and other IP cards. After connecting to user's telephone line, they can store up to 8 prepaid card info. including access number, language option, accounts and PIN. And when you want to make a long distance call through the prepaid card, you just need to dial the destination number(with the same habit as before). Our auto dialer will dial the access number, account and PIN of prepaid phone card automatically before dialing the telephone number which users dial. So the users won't have any trouble in dialing/rediaing a long serie numbers of prepaid card.