This implementation of Telephony Application Programming Interface (TAPI) unifies Internet Protocol (IP) and traditional public switched telephone network (PSTN) telephony to support programs that effectively work the same way over intranets, the Internet, and traditional networks. This section provides information for configuring and managing both IP and PSTN telephony servers and clients.

• Before you begin using telephony with this computer, see Telephony Checklists.
  
• To find features that have been moved in Microsoft® Windows® 2000, Windows XP, and the Windows Server 2003 family, see New ways to do familiar Telephony tasks.
  
• For tips about using telephony, see Telephony Best practices.
  
• For help with specific tasks, see Telephony How To....
  
• For general background information, see Telephony Concepts.
  
• For problem-solving instructions, see Telephony Troubleshooting.