Lucent Technologies DEFINITY Enterprise Communication Server Release 8.2 Administrators Guide

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1407 ISDN service 
20
can override the DCS called name and number if the Display Connected 
Name/Number for ISDN DCS Calls field is y on the Feature-Related 
System Parameters screen.
BRI trunks support DCS if using a BX.25 link to transport the DCS 
messages. DCS+, also known as DCS Over ISDN D-Channel, 
according to 
the
 AT&T protocol, is not supported on BRI trunks.
nFacility Test Calls...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1408 Leave Word Calling 
20
nWideband Switching (NxDS0)
DEFINITY ECS does not support wideband switching on BRI 
connections.
Related topics
Refer to Administered Connections ‘‘
Administered Connections’’ on page 1133 
for detailed information on this feature.
Refer to ‘‘
Call-by-Call Service Selection’’ on page 1295 for detailed information 
on this feature.
Refer to DEFINITY ECS...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1409 Leave Word Calling 
20
The system can indicate that one telephone received a LWC message on a second 
telephone. The system lights a remote Automatic Message Waiting lamp at the 
remote telephone and the Automatic Message Waiting lamp lights at the called 
telephone. The Remote Automatic Message Waiting lamp is a status lamp 
associated with a button assigned for this purpose. Thus, an...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1410 Line Lockout 
20
nCall Coverage
You can use LWC with or without Call Coverage. However, the two 
features complement each other. The Coverage Callback option of Call 
Coverage is provided by LWC. Also, a caller can activate LWC for the 
called party even if the call has been answered by a covering user.
nCentralized Attendant Service
LWC Message Retrieval does not work with CAS....

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1411 Listed Directory Numbers 
20
Line Lockout occurs when:
nA user does not hang up after the other party on a call is disconnected.
The user receives the dial tone for 10 seconds and then receives the 
intercept tone for the length of time administered in Line Intercept Tone 
Timer on the Feature-Related System Parameters screen. If the handset 
remains off-hook, the telephone is taken out...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1412 Listed Directory Numbers 
20
How the system routes incoming DID trunk 
calls to the attendant group
Incoming DID calls route only to an extension. The LDN feature allows you to 
assign one or more extensions to an attendant group. The system uses the LDN 
extension, or extensions, to route calls to an attendant group.
How the system routes incoming FX and CO 
trunk calls to the attendant...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1413 Look-Ahead routing 
20
Look-Ahead routing
Look-Ahead Routing (LAR) allows the switch to reroute an outgoing ISDN call 
that is not completing. The switch attempts to complete the call along a different 
routing preference, or it tries the current routing preference a second time. If the 
current preference fails twice, the next routing preference is tried.
LAR can be administered at an...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1414 Look-Ahead routing 
20
NOTE:
When country code 13, protocol version a, is administered on the DS1 
Circuit Pack screen, only the cause values #10 and #89 activate LAR.
LAR terminates when:
ncall is successfully routed
ncall is rejected with a non-LAR-triggering cause value
nno further route preference can be used to route the call
LAR measurement
You can measure the number of attempted...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1415 Loss Plans 
20
nRingback Queuing
When a call originates and queues at the trunk group queue, the call can be 
placed in queue multiple times if LAR is active. The call originator can be 
called back each time the call is continued automatically.
nSatellite Hop Limit
Satellite Hop Limit always takes precedence over LAR. When the 
maximum hop limit is reached for a route preference, the...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1416 Loudspeaker paging 
20
on the Station and Trunk Group screens. This allows you to use different loss 
plans for different types of phones or different trunk groups. 
The Tone and Conference Loss Plans page of the System Parameters 
Country-Options screen allows you to set the gain or loss levels (in dB) between 
all parties on a conference call, as well as the total gain or loss in a...