Chapter 1: Telecommunications in Business.Chapter 2: Communications Systems and Equipment.Chapter 3: Basic Telephone Communications Skills.Chapter 4: Receiving and Making Calls.Chapter 5: Professional Telephone Management.Chapter 6: International Telephone Communications.Chapter 7: Telemarketing.Chapter 8: Customer Service.Appendix A: Area Codes for Major Cities in the United States and Territories.Appendix B: International Calling Codes for Countries and Major Cities.Appendix C: Teh 24-hour clock