ATT DEFINITY Communications System Generic 3 Instructions Manual

							Coverage Callback
Issue  3   March 1996
3-567
Coverage Callback
Feature Availability
Coverage Callback is available with all Generic 3 releases.
Description
Allows a covering user to leave a message for the principal (called party) to call 
the calling party.
Coverage Callback is activated by pressing the Cover Callback button after 
answering a coverage call.
Details of how Coverage Callback is used in conjunction with Call Coverage are 
given in the Call Coverage feature description elsewhere in this section.
Considerations
Coverage Callback is useful whenever it is necessary to let the principal know 
that a call has been received from a certain party.
Interactions
Coverage Callback is only used in conjunction with the Call Coverage feature.
Administration
Coverage Callback is administered on a per-voice terminal b asis by the System 
Manager. The only administration required is to assign a Cover Callback button.
Hardware and Software Requirements
No a d ditional hardware or software is required. 
						

							Feature Descriptions
3-568Issue  3   March 1996 
Coverage Incoming Call Identification 
(ICI)
Feature Availability
Coverage Incoming Call Identification is available with all Generic 3 releases.
Description
Allows multiappearance voice terminal users without a display in a Coverage 
Answer Group to i dentify an incoming call to that group.
When an incoming call is directed to a Coverage Answer Group, the status lamp 
associated with the Coverage Answer Group button lights at group member’s 
voice terminal.
Details of how Coverage ICI is used in conjunction with Call Coverage are given 
in the Call Coverage feature d escription, elsewhere in this section.
Considerations
With Coverage ICI, memb ers of Coverage Answer Groups do not have to have a 
display in ord er to i dentify incoming calls to the group.
A second coverage call takes control of the Coverage ICI lamp and does not 
return control to the previous call when the second call is released.
Interactions
Coverage ICI is used only in conjunction with the Call Coverage feature.
Administration
Coverage ICI is administered on a per-voice terminal basis by the System 
Manager. The  only  administration required is to assign a Coverage Answer 
Group button.
Hardware and Software Requirements
No a d ditional hardware or software is required. 
						

							Customer-Provid e d Equip ment  (CPE) Alarm
Issue  3   March 1996
3-569
Customer-Provided Equipment (CPE) 
Alarm
Feature Availability
Customer-Provid e d Equip ment  (CPE)  Alarm  is  available with all Generic 3 
releases.
Description
Provides the customer with an indication that a system alarm has occurred and 
that the system has attempted to contact a preassigned service organization 
about the problem. A customer-provided device, such as a lamp or a bell, is 
used to indicate the alarm situation.
The system can be ad ministered so that the CPE Alarm will be activated during 
certain alarm levels. Only one of these levels may be administered. The  CPE 
Alarm will be activated when an alarm occurs which corresp onds to, or is more 
severe than, the a dministered alarm a ctivation level. The levels for which the CPE 
Alarm can be activate d are listed below in descending order, b e ginning with the 
most severe.
nMajor Alarm — This alarm is the most severe system alarm. A major alarm 
indicates that a vital system hardware component, which will seriously 
affect overall service, has failed.
nMinor Alarm — This alarm  indicates that a hardware component, which 
may affect service on a limited scale, has failed.
nWarning Alarm — This alarm  indicates that a problem may exist with a 
hardware component, b ut the problem does not affect service.
The system can also be ad ministered so that the CPE Alarm is not activated 
under any of the previously listed alarm levels.
The CPE Alarm is also activate d during a Power Failure Transfer (see the Power 
Failure Transfer feature elsewhere in this manual) regardless of the administered 
alarm activation level. Even if the system is a dministered so that the CPE Alarm is 
not activated at any alarm level, it will be activated during a Power Failure 
Transfer.
The CPE Alarm is deactivated when the problem that caused the alarm is 
resolved. If there are multiple problems, the CPE Alarm will not b e deactivated 
until all problems, at or above the administered alarm activation level, are 
resolved.
For more information, see 
DEFI NI TY Com munications System Generic 1 and 
Generic 3 Installation and Test
, 555-230-104. 
						

							Feature Descriptions
3-570Issue  3   March 1996 
Considerations
The CPE Alarm feature lets customers use their own equipment to indicate an 
alarm condition. This indication lets the customer know when there is a problem 
with the system and when the problem has been resolved.
Interactions
The following features interact with the CPE Alarm feature.
nPower Failure Transfer
The CPE Alarm is always activated d uring a Power Failure Transfer 
regardless of the a dministered alarm activation level.
Administration
The CPE Alarm feature is administered on a per-system basis by the System 
Manager.
Hardware and Software Requirements
The only hardware required is the actual CPE Alarm d evice (lamp, bell,  and so 
on). This d evice must be customer-provided and customer-installed.
No a d ditional software is required. 
						

							Customer-Provid e d Equip ment  (CPE) Alarm
Issue  3   March 1996
3-571 
						

							Feature Descriptions
3-572Issue  3   March 1996 
Data Call Setup
Feature Availability
Data Call Setup is available with all Generic 3 releases.
Description
Provides multi ple methods to set up a data call:
nKeyb oard dialing
nVoice terminal dialing
nHayes AT command dialing
nPermanent switched connections
nAdministered connections
nAutomatic calling unit interface (MPD and HSC)
nHotline d ialing
Typically, when a data terminal is available, keyboard dialing is more convenient 
and requires less steps; therefore, it should be used whenever possible.
In a dd ition to d ata terminal d ialing and voice terminal dialing, the system accepts 
calls from other devices, such as a MPDM equipped with an ACU interface 
module. An analog modem interfaced with an ACU can also be used to provide 
dialing capability for a host  computer.
The Ad ministered Connections feature, described elsewhere in this chapter, 
may also b e used to establish a data call.
This section describes the data call setup features for b oth DCP sets and ISDN 
BRI sets.
Data Call Setup for DCP Modules
Voice Terminal Dialing for DCP Data Modules
Allows voice terminal users to originate and control data calls from the voice 
terminal. DCP voice terminal dialing must be used when the Data Terminal is not 
accessible for d ialing.
The Transfer feature functions the same for d ata calls as it does for voice calls. 
The feature p ermits a user to set up a call using any unrestricted voice terminal 
and then transferring the call to a data endpoint. However, the primary way to 
establish d ata calls is with the multiappearance voice terminal Data Extension 
button(s). Any administrable feature b utton can be assigned as a Data Extension  
						

							Data Call Setu p
Issue  3   March 1996
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button in system administration. The Data Extension button provides one-touch 
access to a data module.
The voice terminal Data Extension  buttons control the One-Button Transfer to 
Data, Return-to-Voice, and Data Call Preindication o perations for the associated 
data module. These operations are discussed below. Multiple Data Extension 
buttons can be assigned to a multiappearance voice terminal, and that voice 
terminal can set up d ata calls for other data terminals. Also, a single d ata module 
can be accessed by a Data Extension button on a voice terminal. Only one Data 
Extension button can be administered for a single data module.
Voice terminal dialing has the advantage that the user may hear the different 
types of network tones.
For off-premises dialing, particularly for toll calls, the user may opt for voice 
terminal dialing, instead of keyboard dialing.
The following options, either alone or combined, permit flexible procedures for 
establishing data calls:
nOne-Button Transfer to Data
Allows a user to transfer the call to the associated data module simply b y 
pressing the Data Extension button after the called data endpoint 
answers. This method is recommended for voice terminal data call setup.
nReturn-to-Voic e
Allows a user to return the data connection to the voice terminal. The user 
simply presses the Data Extension button associated with the busy data 
module. If the user hangs up following the return, the call is disconnected. 
If Return-to-Voice is affected by two voice terminal users, each through 
use of the Data Extension b utton associated with the two data endpoints of 
the call, then a voice call is established. Return of a data call to the voice 
terminal implies that the same (data) call will be continued in the voice 
mode, or transferred to another data endpoint.
nData Call Preindication
Allows the user, before dialing the distant data endpoint, to reserve the 
associated data module by pressing the Data Extension button. This 
ensures that a conversion resource, if needed, and the data module are 
reserved for the call. Use of Data Call Preindication before one button 
transfer to data is recommended when establishing data calls that use toll 
network facilities. Needed conversion resources are reserved before any 
toll charges are incurred.
Data Terminal (Keyboard) Dialing for DCP Data Modules
Allows a user to set up and disconnect data calls directly from a data terminal. A 
voice terminal is not needed. The voice terminal functions of switchhook and the 
audible call progress tones are replaced with keyboard dialing and text known 
as call progress messages. The message DIAL: prompts the user to enter the  
						

							Feature Descriptions
3-574Issue  3   March 1996 
called data number manually from the keyboard, and RINGING informs the user 
the called data numb er is being rung. If the data call is placed in queue, the 
message WAIT, xx IN QUEUE is received (xx represents queue position). This 
queue number is updated by the system as the call moves up in the q ueue. The 
next table lists the call progress messages.
To originate and disconnect a call using Data Terminal Dialing, the user presses 
BREAK on the terminal. [This is e quivalent to a voice terminal user lifting the 
handset (call origination) or hanging up (call disconnect).] If the terminal b eing 
used does not generate a 2-second continuous break signal, the user can press 
Originated/Disconnect on the data module. Then, the data terminal allows the 
user to enter digits from the data terminal keyboard, after the message DIAL: 
(which is the e quivalent of dial tone on a voice terminal).
In a ddition to the numeral, #, and * characters found on a touch-tone pad, the 
dialing information may contain the following special characters:
nSPACE, —, (, and) may b e used to improve legibility. These characters are 
ignored by the system during dialing.
n+ character (wait) may be used to interrupt or suspend dialing until dial 
tone is received from the distant switch.
n, (pause) character may b e used to place a 1.5-second pause in dialing 
(multiple, can be used).  
n% (mark) character may be used to indicate the following digits are for 
end-to-end signaling (touch-tone). This is required when the trunk is 
rotary. It is not required when the trunk is touch-tone.
nUNDERLINE or BACKSPACE may b e used to correct  previously typed 
characters on the same line.
n@ may be used to delete the entire line and start over with a new DIAL: 
prompt.
Each line of dialing information may contain up to 42 characters (the +  and % 
characters count as two each).
Examp les of dialing are as follows:
nDIAL: 3478
nDIAL: 9+(201) 555-1212
nDIAL: 8, 555-2368
nDIAL: 9+555-2368+%9999+123 (remote access)
Single-Line Dialing
All of the d ialing information, including pauses and ignored characters, are typed 
on a single line. The line with the DIAL: prompt must be complete; that is, the 
dialing information must specify a complete call before the c arriage return or line 
feed. 
						

							Data Call Setu p
Issue  3   March 1996
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Single-line dialing is recommended if all  dialing information can be entered on 
one line.
Multiple-Line Dialing
Automatically invoked when a single line of dialing information is incomplete. 
Multiple-line dialing is only used with off-premises calling.
In multiple-line dialing, the DIAL: prompt follows on the next line when all of the 
dialing information of the previous line has been sent and dial tone has occurred; 
a d ditional dialing information is requested.
This is a typical off-p remises dialing sequence:
nDIAL: 9
nDIAL: (201) 555-2368
nRINGING
nA NSW ER ED
Alphanumeric Dialing
Alphanumeric Dialing enhances Data Terminal Dialing by allowing a data 
terminal user to place a data call by entering an alphanumeric name. This 
capability makes Data Terminal Dialing both convenient and user-friendly. 
Instead of dialing a long string of numbers, the user can enter a simple 
alphanumeric name. For more detailed information, see the Alphanumeric 
Dialin g feature description, elsewhere in this chapter.
Call Forwarding All Calls
Call Forwarding All Calls allows incoming data calls to be redirected to another 
extension that is designated by the user. Activation/deactivation of the feature is 
done either by the attendant or by the forward ing party itself through the dialing 
of a feature access code.
Default Dialing
Default Dialing enhances Data Terminal (Keyboard) Dialing by allowing a data 
terminal user to place a data call to a preadministered destination by simply 
entering a carriage return at the DIAL: prompt. The d ata terminal user can still 
place calls to other destinations by entering the complete address after the 
DIAL: prompt (normal Data Terminal Dialing or Alphanumeric Dialing). For more 
detailed information, see the Default Dialing feature d escription elsewhere in 
this chapter.
Administered Connections
An Administered Connection is an end-to-end connection between two access 
endpoints or d ata endpoints that is automatically established by the system 
whenever the system is restarted or the Administered Connection is a dministered  
						

							Feature Descriptions
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and due to be active. The attributes of these connections are user-defined. To 
administer Administered Connections, use the “ Administered Connection” form 
via the SAT.
Once the ADM has been a dministered as one endpoint of an administered 
connection, the system waits for the scheduled time to set u p the connection. At 
the scheduled time, the system establishes the connection and maintains it for 
the length of time specified. Once the call is accepted, the set will enter into the 
continuous mo de for the length of time specified. If the switch is reboote d during 
the continuous connection, the connection will reinitiate the call setup. At any 
time that the connection drops (for example, disconnected cabling), the switch 
will reinitiate the call setup.
Hotline Dialing
Hotline Dialing is discussed in detail in the Data Hot Line feature description 
elsewhere in this manual. Table 3-50 shows call progress messages for DCP.
Table 3-50. Call Progress Messages for Keyboard Dialing for 
DCP
Displayed Message Application Meaning
DIAL: Placing a call Equivalent to dial tone. Enter the desired 
number or feature access code followed by 
a carriage return or a line feed.
RINGING Placing a call Equivalent to ringing tone. Called terminal 
(far-end) is ringing.
BUSY Placing a call Equivalent to b usy tone. Called numb er is in 
use or out of service.
ANSWERED Placing or 
receiving a callNotifies calling and called users that call 
has been answered.
ANSWERED - NOT 
DA TA Placing a call Notifies calling and called users that call 
has been answered and a modem answer 
tone has not been detected.
TRY AGAIN Placing a call Equivalent to reorder tone. System facilities 
are currently not available.
DENIED Placing a call Equivalent to intercept tone. Call cannot be 
placed as dialed.
ABANDONED Receiving a call Notifies called user that the calling user 
abandoned the call.
NO TONE Placing a call Notifies user that tone was not detected.
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