Netopia R3100-U User Reference Manual page 244

B-4 User's Reference Guide
Long-distance ISDN calls (North American models only)
If you are interested in placing long-distance calls on your Netopia Router, you will want to sign up with a
long-distance telephone carrier company that offers connectivity over ISDN. When the Netopia Router places
long-distance calls on your ISDN line, you will then be automatically billed by a long-distance telephone
company. Therefore, make sure you use a long-distance company of your choice for your ISDN line.
Note: If you choose not to have a long-distance carrier, calls placed out of your local area will fail.
ISDN Service Provider information (North American models only)
If your ISDN service provider does not recognize the Netopia Router or ordering codes, provide them with the
ISDN Provisioning information in Appendix A.
Testing the ISDN line
Once the Netopia Router is installed and configured, use the loopback test to evaluate the line. See "ISDN
Switch Loopback Test" on page 16-13. If the line does not work properly, ask your ISDN service provider to
reconfigure the line until it works properly. A successful loopback is necessary for a bonded 128K 2B
connection.