Furuno FELCOM 70 Operator's Manual page 140

6. DATA COMMUNICATION
9 Check Connect using a dial-up modem.
Click Next. Check "Modem - Standard 33600 bps Modem". Click Next.
10 Enter the name for the connection e.g. Mobile Data Service via RS-232.
Click Next.
Enter phone number. (Through some Net Providers, dialing 28 automatically
connects you to the ISP - Internet Service Provider). Click Next.
6-50