Lucent Technologies 8.2 User Manual

Page of 1707
DEFINITY ECS Release 8.2
Administrator’s Guide  
555-233-506  
Issue 1
April 2000
Features and technical reference 
1201
Call Coverage 
20
For countries using the USA tone plan, a Call Classifier - Detector or Tone 
Clock/Call Classifier - Detector circuit pack is sufficient to provide call 
classification.
For countries not using the USA tone plan, the Call Classifier - Detector and Tone 
Clock with Call Classifier - Tone Detector circuit packs must be configured 
appropriately to provide call classification.
The number of simultaneous monitored calls depends on the:
total amount of outbound call traffic, 
number of call classification ports available, and 
use of other switch applications that make use of call classification ports.
Coverage of Calls Redirected Off-Net competes with the following switch 
applications for ports on the Call Classifier - Detector and Tone Clock with Call 
Classifier - Tone Detector circuit packs:
Answer Detection
Call Prompting
CallVisor ASAI
Multi-Frequency Compelled (MFC) signaling
Serious degradation of switch performance, including the inability to launch new 
calls, can result from an insufficient resource of call classifier ports.
Detailed description
When a call meets the redirection criteria of the principal, the call attempts to 
route to one of up to 6 points in the coverage path. If no coverage points are 
available, the call may revert to the called principal or group. If any point in the 
path is available, the call either rings the individual phone or member of a group 
specified for that point or queues on the group. Once a call is ringing or queued at 
any point in a coverage path, the call never reverts to the called principal or group, 
or to the previous point. A call remains at a coverage point for the Coverage 
Subsequent Redirection interval. At the end of this interval, the call attempts to 
route to any remaining points in the coverage path. If no other point is available to 
accept the call, the call remains queued or continues ringing the current coverage 
point.