Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Instructions Manual

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1597 Whisper paging 
20
Speakerphones
When a call is on the speaker, an incoming whisper page is heard over the speaker 
too. When the group listening feature on a 6400-series phone is active, an 
incoming whisper page is heard on both the handset and the speaker.
Interactions
nAttendant
Attendants cannot intrude on a whisper page. If an attendant is using 
intrusion to talk to a user, that...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1598 Whisper paging 
20
nClass of Restriction (COR)
A station user must have a COR that allows for station-to-station calling in 
order to perform Whisper Paging to a member outside of their own COR. 
Calling and called party restrictions also determine which extensions can 
make and receive whisper pages.
nConference
Everyone on a conference call hears the tone that signals an incoming...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1599 Whisper paging 
20
nTenant Partitioning
Whisper paging is permitted across tenant partitions if the assigned classes 
of restriction allow for intercom calling between members of different 
partitions. This feature is especially useful to attendants who serve multiple 
partitions.
NOTE:
It is important for system administrators to ensure that this feature is 
managed appropriately in...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1600 Wideband Switching 
20
Wideband Switching
(Not available with Offer B) Wideband Switching provides the ability to dedicate 
2 or more ISDN-PRI B-channels or DS0 endpoints for applications that require 
large bandwidth. It provides high-speed end-to-end connectivity between 
endpoints where dedicated facilities are not economic or appropriate. ISDN-BRI 
trunks do not support wideband...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1601 Wideband Switching 
20
Channel allocation
For standard narrowband communication, ISDN-PRI divides a T1 or E1 trunk as 
follows:
nT1 trunks are divided into 23 information channels and 1 signaling channel
nE1 trunks are divided into 30 information channels, 1 signaling channel, 
and 1 framing channel
Certain applications, like video conferencing, require greater bandwidth. You can...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1602 Wideband Switching 
20
Typical uses
A typical video application uses an ISDN-PRI interface to DS0 1 through 6 of the 
line-side facility. Refer to the following figure.
Figure Notes
Endpoint applications with signaling
An endpoint application is the origination or destination point of a wideband call. 
Endpoint applications can be any number of data applications based on the 
customer’s...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1603 Wideband Switching 
20
The terminal adapter also must adhere to the PRI-endpoint boundaries as 
administered on the DEFINITY ECS switch when handling both incoming (to the 
endpoint) applications and outgoing calls.
The terminal adapter passes calls to and receives calls from the line-side 
ISDN-SETUP messages indicating the data rate and specific B-channels (DS0) to 
be used and...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1604 Wideband Switching 
20
Universal digital signal level 1 board
The UDS1 board is the interface for line-side and network facilities carrying 
wideband calls.
Non-signaling endpoint applications
Wideband can also support configurations using non-signaling (non-ISDN-PRI) 
line-side T1 or E1 facilities. The endpoint applications are the same as those 
defined for configurations with...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1605 Wideband Switching 
20
Guidelines and examples
This section examines wideband and its components in relation to the following 
specific customer usage scenarios:
nHigh-speed video conferencing 
nData backup connection
nScheduled batch processing
nPrimary data connectivity
nNetworking
High-speed video conferencing
All data rates are multiples of 64 Kbps; from 128 Kbps to 1,536 Kbps (T1)...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1606 Wideband Switching 
20
Primary data connectivity. Permanent data connections (those always active 
during business hours), such as interconnections between local area networks 
(LANs), are well suited for DEFINITY ECS when ISDN-PRI endpoints are used. 
The ISDN end-to-end monitoring and the endpoint’s ability to react to failures 
provide for critical data availability needs. With ISDN,...