ATT DEFINITY Communications System Generic 3 Instructions Manual

							Data Call Setu p
Issue  3   March 1996
3-587
nModem Pooling:  DEFINITY  syst em Generic 3 requires either a TN758 
Modem Pool circuit pack, or one digital port associated with a Trunk Data 
Module (either TDM or MTDM) and one analog port with analog modem 
for each conversion resourc e. A 7400A Data Module may be used in 
place of the TDM or MTDM.
nData Line Data Module: Each port is c onnected to an ADU that converts to 
an RS-232 interface for connection to a data terminal.
Keyb oard Dialing to off-premises data en d points requires the use of a tone 
detector circuit pa ck such as TN748C-Tone Detector, TN420C-Tone Detector, 
TN744C-Tone Detector/Call Classifier, or TN2182-Tone 
Clock/Detector/Generator. 
NOTE:
The TN748C (Mu-law) and TN420 (A-law) support precise tone d etection. 
However, the TN744C or TN2182 only support p recise tone  detection in 
countries that strictly adhere to U.S. standards. Therefore, if the detectors 
are used in countries that do not adhere to U.S. standards, the users may 
not exp erience p recise feedback during the data call setup.
T748C and TN2182 support Mu-law. TN420C, TN744C, and TN2182 support 
A-law. Extensive use of features and services using tone detection may 
necessitate adding additional tone detector circuit  packs.
A TN726 Data Line circ uit pack can be used to provide direct access for data 
terminal users.
No a d ditional software is required. 
						

							Feature Descriptions
3-588Issue  3   March 1996 
Data Hot Line
Feature Availability
Data Hot Line is available with all Generic 3 releases.
Description
Data Hot Line provides for automatic nondial placement of a data call to an 
endpoint when the originator goes off-hook. It may be used for security 
purposes.
Data Hot Line calls are automatically placed, by the system, from specified 
digital data endpoints to preassigned extension numbers or off-premises 
numbers. Hot Line originating endpoints are destinations connected to the 
system by a data module. The destination numb er is stored in the Abbreviated 
Dialing List.
Considerations
Data Hot Line offers fast and accurate call placement to commonly called data 
endpoints. Data terminal users that constantly call the same destination number 
can use Data Hot Line to automatically place the call by going off hook.
The number of terminals that can be assigned Data Hot Line is not limite d, and 
the number of terminals that can b e assigned the same destination numb er is not 
limited. The only limit, if any, would be on the number of entries stored in the 
Abbreviated Dialing List.
Interactions
The following features interact with the Data Hot Line feature.
nCall Forwarding — All Calls
A Hot Line originator cannot activate Call Forwarding, since an off-hook 
intended to dial the Call Forwarding Feature Ac c ess Code will cause 
activation of the Data Call Hot Line feature instead.
nData Terminal (Keyboard) Dialin g
Any Terminal Dialing text may occur when a Data Hot Line Call is being 
established, with the exception of the inhibition of the initial d ial text 
message prompt normally given on off-hook for origination. 
						

							Data Hot Line
Issue  3   March 1996
3-589
nSystem/ISN Ac cess
A data call to an ISN data endp oint from a system digital d ata endpoint 
requires a two-stage dialing. A Hot Line Destination may be an extension 
number for an outgoing ISN group only, the Hot Line originator must then 
interact with ISN and manually enter the second address (data endpoint).
Administration
Data Hot Line is administered on per-data terminal b asis by the System 
Manager. The following item requires administration:
nHot Line Destination Number — The preadministered Hot Line Destination 
must be stored in an abbreviated dialing list. This list can be a system list, 
group list, personal list, or enhanced list. Therefore, before this feature can 
be activated, users’ terminals need to be administered with an 
a b breviated dialing list that stores the Hot Line Destination. Then, each 
data module needs to specify the index number of the entry which stores 
the destination. The following fields from the “ Data Module” form are 
needed to activate the Data Hotline feature.
— Special Dialing Option (default/hotline) — For Data Hotline, 
‘‘hotline’’ must be selected. Default Dialing and the Data Hotline 
feature cannot both be assigned to an extension.
— An Ab breviated Dialing List — One entry in the data mo dule’s 
a b breviated dialing list needs to store the d efault destination.
— Dial Code (0-999) — An index to the entry of the a bbreviated 
dialing list that stores the default destination.
Hardware and Software Requirements
No a d ditional hardware or software is required. 
						

							Feature Descriptions
3-590Issue  3   March 1996 
Data Privacy
Feature Availability
Data Privacy is available with all Generic 3 releases.
Description
NOTE:
This feature is know as ‘‘Data Protection’’ in G2.
Protects analog d ata calls from b eing d isturbed by any of the system’s overriding 
or ringing features. Data Privacy, when activated by a user, d enies the system 
the ability to gain access to, or to superimpose tones onto, the protected call.
To activate this feature, the user dials the activation code at the beginning of the 
call.
Considerations
All systems have the capability for Data Privacy to p rovide interruption protection 
by denying the system the a bility to gain access to the protected, analog data 
call.
Connections involving one or more digital d ata endpoints (d ata module) are 
automatically protected from receiving system-generated tones. In this case, the 
Data Privacy feature  is not needed.
Data Privacy, when activated, ap plies to both voice and data calls. The feature 
can be activated on Remote Access calls, b ut not on other incoming trunk calls. 
Data Privacy is canceled if the call is transferred, adde d to a conference call, 
bridged onto, or disconnected from  by the activating user. Data Privacy can be 
activated on calls originated from attendant consoles.
Interactions
The following features interact with the Data Privacy feature.
nAttendant Call Waiting and Call Waiting Termination
If Data Privacy is activated, Call Waiting is denied.
nBrid ged Call Ap pearance  — Single-Line Voice Terminal
When Data Privacy is activated or Data Restriction is assigned to a station 
involved in a b rid ged call and the primary terminal and/or brid ging user 
attempts to bridge onto the call, Data Privacy and Data Restriction are 
automatically overridden. 
						

							Data Privacy
Issue  3   March 1996
3-591
nIntercom — Automatic and Dial
An extension with Data Privacy or Data Restriction activated cannot 
originate an intercom call. Intercept tone is received when the ICOM 
button is pressed under this condition.
nMusic-on-Hold Access
If a call with Data Privacy activated is placed on hold, Music-on-Hold 
access is withheld to prevent the transmission of some musical tone which 
a connected data service might falsely interpret as a data transmission.
nPriority Calls
If Data Privacy is activated, Priority Calls to the activating extension 
number are denied on analog voice terminals. However, Priority Calls 
a p pear on the next available line a p pearance on multi-appearance voice 
terminals.
nBusy Verification cannot be done when data p rivacy is active.
Administration
Data Privacy is activated by dialing a Data Privacy Feature Ac c ess Code (FAC) 
before originating the call.  Permission to use the feature is assigned in COS.
Hardware and Software Requirements
No a d ditional hardware or software is required. 
						

							Feature Descriptions
3-592Issue  3   March 1996 
Data Restriction
Feature Availability
Data Restriction  is available with all Generic 3 releases.
Description
Protects analog d ata calls from b eing d isturbed by any of the system’s overriding 
or ringing features. Data Restriction, when administered to an extension numb er 
or trunk group, d enies the system the a bility to gain access to, or to superimpose 
tones onto, the protected call.
This feature is administered at the system level to selected analog and 
multi-ap pearance voice terminals and trunk groups. Once administered, the 
feature is active on all calls to or from the associated terminal or trunk group.
Considerations
All systems have the capa bility for Data Restriction to prevent overriding or 
ringing features from interrupting the voice or data call.
Connections involving one or more digital d ata endpoints (d ata modules) are 
automatically protected from receiving system-generated tones. In this case, the 
Data Restriction feature is not needed.
Data Restriction a p plies to b oth voice and data calls. Also, Data Restriction 
cannot be assigned to attendant consoles. Data Restriction is removed from the 
current call if it is transferred, added to a conference call, bridged onto, or 
disconnected from by the restricted extension.
Interactions
The following features interact with the Data Restriction feature.
nAttendant Call Waiting and Call Waiting Termination
If Data Restriction is assigned, Call Waiting is denied.
nIntercom — Automatic and Dial
An extension with Data Privacy when activated cannot originate an 
intercom call.  An extension with Data Restriction assigned cannot 
originate an intercom call. Intercept tone is received when the ICOM 
button is pressed under this condition. 
						

							Data Restriction
Issue  3   March 1996
3-593
nMusic-on-Hold Access
If a call with Data Restriction assigned is placed on hold, Music-on-Hold 
access is withheld to prevent the transmission of some musical tone which 
a connected data service might falsely interpret as a data transmission.
nPriority Calls
Priority Calls are not denied if the analog station is idle; Call Waiting 
(including Priority Call Waiting) is denied if the station is busy. However, 
Priority Calls a p pear on the next available line a p pearance on 
multi-appearance voice terminals.
nBusy Verification cannot be done when Data Restriction is assigned.
Administration
Data Restriction is assigned on a per-line or trunk basis by the System Manager.
Hardware and Software Requirements
No a d ditional hardware or software is required. 
						

							Feature Descriptions
3-594Issue  3   March 1996 
Data-Only Off-Premises Extensions
Feature Availability
Data-Only Off-Premises Extensions is available with all Generic 3 releases.
Description
Allows users to esta blish d ata calls involving DCE or DTE that is locate d remotely 
from the System  site using DATAPHONE d i gital se rv i ce o r other private line data 
facilities. A Data-Only Off-Premises Extension uses an MTDM located 
on-premises. Communication with the remote data equipment is accomplished 
through the private line facility linking the on-premises MTDM and the remote 
data equipment.
The Trunk Data Module and DCE or DTE constitute a digital data endpoint. Data 
calls to this type of data endpoint can be placed using Voice Terminal Dialing or 
Data Terminal (Keyboard) Dialing. Since there is no voice terminal at the remote 
site, data calls can be originated from the remote data terminal using Keyboard 
Dialing only. If computer-generated dialing is used on calls, it must follow the 
Keyb oard Dialing protocol.
Considerations
The systems have the capability for Data-Only Off-Premises Extensions to allow 
for data calls to remote DCE using DATAPHONE digital service or other private 
line data facilities.
Data-Only Off-Premises Extensions provides digital data endpoints located 
off-premises through a Trunk Data Module located on-premises. 
Communications to or from this Trunk Data Module (and the associated 
off-premises equipment) must b e through an on-premises Processor Data 
Module or Digital Terminal  Data Module. Communications between two Trunk 
Data Module are not supported. Likewise, Mo dem Pooling, which is conceptually 
similar to a Trunk Data Module, cannot be used on calls to or from a Data-Only 
Off-Premises Extension.
Interactions
The following features interact with the Data-Only Off-Premises Extensions 
feature. 
						

							Data-Only Off-Premises Extensions
Issue  3   March 1996
3-595
nVoice Terminal Dialin g
An on-p remises multiappearance voice terminal may have a Data 
Extension button associated with the Trunk Data Module used for a 
Data-Only Off-Premises Extension. The voice terminal user and the remote 
data equipment user share control of the data mo dule. Actions of the user 
at the voice terminal may affect the remote user.
— One-Button Transfer to Data
The on-premises voice terminal user can transfer a call to the 
Data-Only Off-Premises Extension. The Data Extension  button  on 
the voice terminal lights and the Call in Progress lamp on the data 
module lights during an established data call.
— Return-to-Voic e
If a data call has already been established, the voice terminal user 
may press the associated busy Data Extension button to transfer 
the call to the voice terminal. The data module associated with the 
Data Extension  button  is disconnected from the call. The Call in 
Progress lamp on the data mo dule goes dark.
— Data Call Preindication
The multia p pearance voice terminal user presses the idle 
associated Data Extension button to reserve the data mo dule. The 
data module is then busy to all users except the Preindicating user, 
including the remote user. When the data module is reserved, the 
lamp associate d with the Data Extension button winks at the 
preindicator’s voice terminal and lights at any other asso ciated 
voice terminals. A remote user receives the BUSY message when 
attempting to originate a call.
Administration
Data-Only Off-Premises Extensions is assigned on a p er-line b asis b y the System 
Manager. The following item requires administration:
nDigital Line Circuit Pack — Assign the associated data module to a vacant 
port.
Hardware and Software Requirements
Requires a Trunk Data Module and one port on a TN754 Digital Line circuit pack 
(TN413, TN754B support A-law). No a d ditional software is required. 
						

							Feature Descriptions
3-596Issue  3   March 1996 
DCS Alphanumeric Display for 
Terminals
Feature Availability
DCS is available with all Generic 3 releases except G3vs/G3s ABP. 
Description
Allows calls to or from terminals equipp e d with alphanumeric displays to have 
transparency with respect to the display of call-related information.
Calling Name Display is the presentation, on the 
called terminal’s alphanumeric 
display, of the name of the party who originated the call. Called Name Display is 
the presentation on the 
originatin g terminal’s display of the name of the party to 
whom the call is directed.  Both displays provide more useful and precise 
information than such general identifiers as a trunk group name or an extension 
number.
The transparency allows calling and called name information, plus miscellaneous 
identifiers (IDs) to be sent from a terminal on one node to a terminal on another 
node.  Transparency in this area is limited by the type of systems at the endpoint 
nodes and at the intermediate node, if any.
Considerations
DCS Alphanumeric Display for Terminals gives the user considerable call 
handling capabilities by displaying call related information on calls to and from 
other DCS nodes.
Calls to and from a DEFINITY system Generic 3 in a DCS network have 
Calling/Called Name Display transparency under the following conditions:
nThe other party is at another DEFINITY  syst em Generic 3 and the tandem 
node is a System 75 Version 3 or later, DEFINITY system Generic 1, 
DEFI NI TY s yst em  Generic 3, System 85 Release 2 Version 2 or later, or a 
DEFI NI TY s yst em  Generic 2.1.
nThe call is not routed through a tandem System  85  Release 2 Version 1 or 
Enhanced DIMENSION PBX node. (Such calls will display only the 
extension number of the calling or called party.)
On outgoing DCS calls, display of the called name may be delayed for a few 
seconds until the required information arrives from the distant node. The called 
name display only works between DEFI NI TY s yst em s Generic 1, Generic 3 
systems, and System 75s.