Lucent Technologies Definity Enterprise Communication Server 8.2 User Manual

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DEFINITY ECS Release 8.2
Administrator’s Guide  
555-233-506  
Issue 1
April 2000
Features and technical reference 
1203
Call Coverage 
20
DEFINITY ECS allows for multiple coverage paths. However, for any particular 
call only one coverage path is used. The “lead” coverage path is the first coverage 
path in a chain that is considered when a call redirects to coverage. The chain is 
defined in the Next Path Name field on the Coverage Path screen.
When a call redirects to coverage, the lead coverage path at that time is checked to 
determine whether its coverage redirection criteria match the call status. If there is 
a match the lead coverage path is used. If the lead coverage path’s redirection 
criteria does not match, the system moves down the path chain until it finds a 
coverage path with redirection criteria that matches the call status. If the chain is 
exhausted before the system finds a match, the call does not redirect to coverage. 
Once a coverage path is selected, it is used exclusively through the duration of the 
call.
You can assign lead coverage paths directly in the Coverage Path 1 or Coverage 
Path 2 fields on the appropriate screens. For example, to assign a lead path for a 
TEG, set the Coverage Path field on the Terminating Extension Group screen. You 
can also assign the lead paths indirectly by assigning a Time-of-Day Coverage 
Table to the Coverage Path 1 and Coverage Path 2 fields. Then, the system selects 
the lead path according to the time of day.
Subsequent redirection interval
The number of times a call rings at a particular coverage point before the switch 
moves the call to the next coverage point depends on the type of ringing coverage 
point (for example, local, Distributed Communications System (DCS), CCRON, 
and so forth). For each type of coverage point, the following table shows which 
subsequent redirection interval on the System-Parameters Call Coverage/Call 
Forwarding screen is used.
Local — On the System-Parameters Coverage/Forwarding screen, the 
Local Subsequent Redirection/CFWD Don’t Answer Interval field.
Off-net — On the System-Parameters Coverage/Forwarding screen, the 
Offnet Subsequent Redirection/CFWD Don’t Answer Interval field.
*
 — The call is left off-net.
Type of Coverage
Subsequent Redirection Interval
local
local
remote
*
CCRON
off-net
DCS
local