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Contents
x Issue 7 May 1998
Other Failure Conditions for
Switch-Classified Calls 4-19
2. User-Classified Call 4-19
Parameters for User-Classified Calls 4-19
Call Classification for User-Classified Calls 4-22
ECS Operation for User-Classified Call Setup 4-22
User-Classified Call Originator 4-22
User-Classified Call Destination 4-23
Negative Acknowledgement of a
User-Classified Call 4-23
3. Phantom Calls 4-24
Parameters for Phantom Calls 4-25
Call Classification for Phantom Calls 4-27
Phantom Call Originator 4-27
Phantom Call Destination 4-27
Negative Acknowledgment of a Phantom Call 4-28
4. Direct-Agent Call 4-28
Parameters for Direct-Agent Calls 4-29
Call Classification 4-31
ECS Operation for Direct-Agent Call Setup 4-31
Direct-Agent Call Originator 4-31
Direct-Agent Call Destination 4-32
Negative Acknowledgments of a
Direct-Agent Call 4-32
5. Supervisor-Assist Call 4-32
Supervisor-Assist Call Parameters 4-34
Supervisor-Assist Call Classification 4-36
ECS Operation for Supervisor-Assist Call Setup 4-36
Supervisor-Assist Call Originator 4-36
Supervisor-Assist Call Destination 4-36
Negative Acknowledgments of a
Supervisor-Assist Call 4-37
Parameters and Call Types 4-37
■ Third Party Take Control 4-39
Information Flow 4-39
Third Party Take Control Parameters 4-39
ACK (positive acknowledgement) Parameters 4-39
Denial NAK) Causes 4-41
Protocol Error (NAK) Cause 4-41
Considerations 4-42