Summary

This chapter started by covering some recommendations for practical troubleshooting of ISDN remote services. These included using #show isdn status to view service layers, preconfiguring the routers on both ends, and accessing the remote user's router. After that general discussion, this chapter presented five scenarios aimed toward helping you learn how to apply ISDN troubleshooting techniques covered earlier in this part:

• Scenario 1: New Install Problems

• Scenario 2: Dial-Out Problems

• Scenario 3: ISDN Performance Problems

• Scenario 4: End-to-End Communication Problems

• Scenario 5: Windows 2000 DDR Issue