2.1 Cisco Packet Telephony Center

• Cisco PTC Release Notes, 2.1
  2.1 Cisco PTC Release Notes

• Cisco PTC Installation and Configuration Guide, 2.1
  2.1 Cisco PTC Installation and Configuration Guide

• Cisco PTC User Guide, 2.1
  2.1 Cisco PTC User Guide

• Cisco PTC API Reference and Programmer Guide, 2.1
  2.1 Cisco PTC API Reference and Programmer Guide