Furuno FELCOM 70 Operator's Manual page 178

6. DATA COMMUNICATION
3. Select "European ISDN (DSS1) type switch. Click Next.
Enter MSN 60 for 64 kbps ISDN data service, or MSN 65 for 128 kbps
(shown in example). Click Add to enter the MSN, and Next to continue.
4. Check Connect to the Internet. Click Next.
Check Set up my connection manually. Click Next.
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