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 
1467 Remote Access 
20
system does not have access to the calling (outside) number, Ringback Queuing 
and Automatic Callback cannot be used on a Remote Access call. Also, any 
feature requiring recall dial tone (for example, Hold and Transfer) cannot be 
accessed remotely.
Read the information in ‘‘
Security’’ on page 1468 before administering this 
feature.
!SECURITY ALERT:
Lucent Technologies has designed the Remote Access feature incorporated 
in this product that, when properly administered by the customer, enables the 
customer to minimize the ability of unauthorized persons to gain access to 
the network. It is the customer’s responsibility to take the appropriate steps 
to properly implement the features, evaluate and administer the various 
restriction levels, protect access codes, and distribute them only to 
individuals who have been advised of the sensitive nature of the access 
information. Each authorized user should be instructed on the proper use 
and handling of access codes.
In rare instances, unauthorized individuals make connections to the 
telecommunications network through use of remote-access features. In such 
an event, applicable tariffs require that the customer pay all network charges 
for traffic. Lucent Technologies cannot be responsible for such charges, and 
does not make any allowance or give any credit for charges that result from 
unauthorized access.
Detailed description
Remote Access provides you with access to the system and its features from the 
public network. This allows you to make business calls from home or use 
Recorded Telephone Dictation Access to dictate a letter. If authorized, you can 
also access system features from any on-site extension.
With Remote Access, you can dial into the system using Direct Inward Dialing 
(DID), Central Office (CO), Foreign Exchange (FX), or 800 Service trunks. When 
a call comes in on a trunk group dedicated to Remote Access, the system routes 
the call to the Remote Access extension you have assigned. If DID is provided and 
the Remote Access extension is within the range of numbers that can be accessed 
by DID, Remote Access is accessed through DID. 
Upon access to the feature, you hear system dial tone. If you have administered 
your system to require a barrier code or authorization code, the system requires 
you to enter it now. When you enter the required codes, the system generates dial 
tone. You can now place local or long-distance calls as allowed. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1468 Remote Access 
20
Barrier codes  provide your system security and define calling privileges through 
the administered class of restriction (COR). You can administer up to 10 barrier 
codes, each with a different COR and class of service (COS). Barrier codes can be 
from 4 to 7 digits, but all codes must be the same length. You can also require that 
users enter an authorization code  to use this feature. Both barrier codes and 
authorization codes are described under ‘‘
Security’’ on page 1468.
The destination of incoming non-DID trunk calls can be an attendant or an 
extension. The destination is specified on each individual trunk group. When the 
trunk group is dedicated to Remote Access, the Remote Access extension is 
specified. In this case, you do all dialing. If an attendant is needed on a call, you 
dial the public network telephone number assigned, the barrier code, and the 
attendant access code. You can administer your system to provide 
attendant-assisted calling during the day but Remote Access after normal business 
hours. You do this by setting the trunk group Incoming Destination field to the 
attendant (attd), and specifying the Remote Access extension  as the Night 
Service extension .
After a Digital Terminal Data Module’s (DTDM) baud rate is changed from 9600 
to 1200, the DTDM cannot be accessed by Remote Access until an internal call is 
made to the DTDM.
Security
The system provides the ability to check the status of the remote access feature 
and barrier codes. The 
status remote-access command displays information that 
can help in determining why and when use of Remote Access or a particular 
barrier code was denied. The display indicates if Remote Access is:
nNot administered
nEnabled
nDisabled
nDisabled following detection of a security violation
It also gives the date and time Remote Access was last modified.
For each barrier code, the command displays:
nDate the code was administered, reactivated, or modified
nExpiration date
nNumber of calls that can be placed with the code
nNumber of calls that have been placed using the code 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1469 Remote Access 
20
nWhether the code is active or expired
nDate and reason a code expired
For a detailed description of the status remote-access command and display, refer 
to BCS Products Security Handbook.
Barrier Codes
Remote Access has inherent risks; it can lead to large-scale unauthorized 
long-distance use. To increase your system’s security, use a 7-digit barrier code 
with Remote Access Barrier Code Aging. You can administer the Remote Access 
Barrier Code Aging  feature to:
nLimit the length of time an access code remains valid
nLimit the number of times an access code can be used
nBoth of the above
You must administer expiration dates and access limits for each of the possible 10 
barrier codes. If your system has more than 10 Remote Access users, they must 
share codes. A barrier code automatically expires if an expiration date or number 
of accesses has exceeded the limits you set. If both a time interval and access 
limits are administered for a barrier code, the barrier code expires when one of the 
conditions is satisfied.
If barrier codes are administered, a special answer-back tone causes a calling 
modem to leave dial mode. A modem’s dialer is sometimes used to gain access 
(this tone also cancels echo suppressors in the network, preventing DTMF tones 
from breaking dial tone from a switch). Barrier codes can be used alone or with 
authorization codes.
To view the status of a Remote Access barrier code, use the status remote-access 
command.
NOTE:
Barrier codes are not tracked by Call Detail Recording (CDR). Barrier codes 
are incoming access codes, whereas, authorization codes are primarily 
outgoing access codes.
When you no longer need a barrier code, remove it from the system. Barrier codes 
should be safeguarded both by you and their users. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1470 Remote Access 
20
Authorization Codes
You can also administer authorization codes to manage access to your system. 
You can then use CDR to track this code use. Use these guidelines to manage your 
system’s authorization codes. 
nAssigning codes — Create random codes; do not allow them to follow a 
predictable pattern. Use the maximum code length allowed and assign a 
unique code to each person responsible for protecting the code.
nChanging codes — Change codes often.
nDeleting codes — Delete codes when they are no longer needed.
nMonitoring codes — Use CDR reports to analyze code use.
Alternate Facility Restriction Levels
Consider changing facility restriction levels (FRL) with alternate facility 
restriction levels (AFRL) after normal business hours to restrict where calls can be 
made over your facilities. Take care not to restrict callers from summoning 
emergency services after hours. 
Class of Restriction
The COR of an authorization code supersedes that of a barrier code.
nTime of Day Routing — Controlled by the time-of-day entries in COR or 
by the partition.
nToll Restriction and Analysis — Controlled by COR.
nTrunk Access Code — Interacts with toll restriction. You can translate your 
switch so users can make toll calls via Alternate Route Selection (ARS) 
without using a trunk access code.
nTrunk Administration — Remote Access trunks can be restricted.
For additional steps to secure your system and to find out about obtaining security 
information on a regular basis, refer to the BCS Products Security Handbook.
Logoff Notification
Use Logoff Notification when Remote Access is enabled, but not actively used. 
Logoff Notification notifies you at logoff that Remote Access is enabled. It guards 
against inadvertently leaving Remote Access active and can also alert you to 
unauthorized feature activation. Logoff Notification is administered by login ID. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1471 Remote Access 
20
Interactions
nAuthorization Codes
When a Remote Access caller dials the assigned Remote Access extension 
and connects to the system, the system may request the caller to dial an 
authorization code in addition to a barrier code. Dial Tone between the 
barrier code and authorization code is optional. Calling privileges 
associated with the COR assigned to the authorization code supersede 
those assigned to the barrier code.
nClass of Restriction
COR restrictions do not block access to the Remote Access feature.
nNight Service
The Remote Access extension can be specified as the Night Service 
extension on an incoming, non-DID, trunk group.
Related topics
Refer to ‘‘
Remote Access’’ on page 857 for information about and field 
descriptions on the Remote Access screen.
Refer to ‘‘
Setting up remote access’’ on page 297 for step-by-step instructions for 
configuring remote access.
Refer to ‘‘
Authorization Code — COR Mapping’’ on page 497 for information 
about and field descriptions on the Authorization Code screen.
Refer to ‘‘
Trunk Group’’ on page 967 for information about and field descriptions 
on the Trunk Group screen.
Reset Shift Call
Reset Shift Call allows users to redial a local or private network call by pressing a 
single digit. The switch plays reset shift dial tone on busy calls if:
nA station or attendant originates a call
nThe dialed endpoint is in the dial plan and is one of the following types:
nExtension (local or uniform dial plan (UDP))
nPrefixed extension (local or UDP)
nAAR 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1472 Remote Access 
20
nThe destination is on the same switch as the originator, or is connected via 
an ISDN trunk to the originating switch
When the caller hears reset shift dial tone, they can press a single digit that 
replaces the last digit of the originally-dialed destination and the call transfers to 
the new destination. This feature is useful, for example, where extensions are 
assigned sequentially to functional organizations.
The originator and destination of the call both must be connected to DEFINITY 
ECS. In DCS or QSIG environments, both must be on the same DCS or QSIG 
networks, but do not need to be connected to the same DEFINITY ECS.
Interactions
nAutomatic Alternate Routing (AAR)
If a user dials the AAR feature access code followed by destination digits 
to place a call and the destination is busy, reset shift dial tones is heard. If 
the user then dials a new destination last digit, a new call is placed and the 
display updates as if the AAR feature access code, followed by the new 
destination, was dialed originally.
nBridged Call Appearance
If set A has a bridged appearance on set B, and both users A and B are 
off-hook on that bridged appearance, and set A calls set C, and set C is 
busy, both A and B hear reset shift dial tone. If set B then presses a single 
digit, the digit is ignored and both A and B continue to hear reset shift dial 
tone. Set A must dial the new destination last digit.
nDistributed Communications System
Reset shift call works in a DCS network over ISDN trunks. DCS+ and 
QSIG networks always support reset shift calls.
nForwarding
If the called destination is forwarded to station A and station A is busy, the 
switch applies reset shift dial tone.
If a user dials to a forwarded set and then gets reset shift dial tone, and 
enters a digit, the number dialed by the reset shift call feature is 1 digit off 
from the original user-dialed number, not the forwarded-to number.
nHot Line Service
If a station set user with hot line service reaches a busy endpoint, the user 
hears busy tone and not reset shift dial tone. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1473 Remote Access 
20
nIntercom
nDial
If a user lifts the handset, presses the 
DIAL INTERCOM button, dials the 
1-digit or 2-digit intercom code assigned to another set, and reaches 
a busy set, the switch plays busy tone, not reset shift dial tone.
nAutomatic
If a user lifts the handset, presses the 
AUTOMATIC INTERCOM button, 
and reaches a busy set, the switch plays busy tone, not reset shift dial 
tone.
nLast Number Dialed
If a user hits a 
LAST NUMBER DIALED button while listening to reset shift dial 
tone, the button press is denied.
If a user uses last number dialed after having used reset shift call on the last 
call, the switch re-attempts the last special-dialed call.
nLine Lockout
An analog user listening to reset shift dial tone is not subject to the line 
intercept tone timer.
nLine Side DS1
A call originated from a line side DS1 station (ds1fd, ds1sa, ops, vrufd, 
vrusa) is considered a station originated call.
nMultimedia Call Handling
If a user at a multimedia complex presses the 
MM-CALL button or dials the 
multimedia-origination feature access code after receiving dial tone, and 
then reaches a busy set and uses the reset shift call feature, the resulting 
new call attempt will be a multimedia call attempt.
nPriority Calling
If a user dials the priority calling feature access code or presses a priority 
call button, dials a busy station, and then uses the reset shift call feature, the 
switch makes a priority call to the substituted destination.
nQSIG
Reset shift call does work in a QSIG network if the QSIG network 
configuration allows the ISDN busy signaling to always propagate back to 
the originating switch, which may not be the case if the network includes 
non-Lucent trunks and/or switches.
nRemote Access
A call originated from a remote access extension does not receive reset 
shift dial tone. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1474 Ringer Cutoff 
20
Ringer Cutoff
Ringer Cutoff allows multiappearance telephone users to turn audible ringing 
signals on and off. This feature does not affect visual alerting. 
When this feature is enabled, only Priority ring (by default 3-burst), Redirect 
Notification, Intercom ring, and manual signaling ring at the telephone. Internal 
and external calls do not ring.
The following table summarizes which calls are affected by Ringer Cutoff.
NOTE:
If Call Coverage is set to Cover All and Ringer Cutoff and Redirect 
Notification are both active, then Redirect Notification is received. If 
Redirect Notification is not active, no audible alerting is received.
A user may not wish to be disturbed by the arrival of incoming calls, yet not want 
calls to be redirected immediately to coverage. For example, an executive may 
want a secretary to answer calls before they redirect to coverage. The bridging 
user (the secretary) is not affected by the executive’s activation of Ringer Cutoff.
If a primary extension and all other users with bridged appearances of the primary 
extension activate Ringer Cutoff, an incoming call silently alerts all of the 
telephones and then redirects to coverage.
Interactions
nAutomatic Callback
If Ringer Cutoff is active, an Automatic Callback call returns to the user’s 
telephone with the normal 3-burst ring.
Redirect notification is
Call Type Inactive Active
telephone to telephone no ring ping
Attendant to telephone no ring ping
Internal tie to telephone no ring ping
APLT trunk to telephone no ring ping
Trunk to telephone no ring ping
Priority call to telephone yes yes
Intercom call to telephone yes yes
Manual signaling yes yes 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1475 Ringing — Abbreviated and Delayed 
20
nBridging
A bridging user is not affected by a primary extension’s activation of 
Ringer Cutoff. Nor is the primary extension affected by the bridging user’s 
activation of Ringer Cutoff.
nCall Forwarding All Calls
If Ringer Cutoff and Call Forwarding All Calls are active, the user receives 
redirect notification, if you set Redirection Notification to 
y for the 
extension.
nDistinctive Ringing
Ringer Cutoff turns off only the distinctive ringing of internal and external 
calls. Intercom ringing, priority ringing, redirect notification, and manual 
signaling are not turned off.
nIntercom
If Ringer Cutoff is active, intercom calls still ring the user’s telephone.
nManual Signaling
If Ringer Cutoff is active, Manual Signaling still rings the user’s telephone.
nRingback Queuing
If Ringer Cutoff is active, the return call for Ringback Queuing still rings 
the user’s telephone with a 3-burst alerting signal.
nPriority Calling
If Ringer Cutoff is active, priority calls still ring at the user’s telephone.
nSend All Calls
When Ringer Cutoff and Send All Calls are both active, the user receives 
redirect notification, when Redirection Notification is set to 
y for that 
extension.
Ringing — Abbreviated and Delayed
Ringing — Abbreviated and Delayed allows you to assign one of four ring types 
to each call appearance on a telephone. Whatever treatment is assigned to a call 
appearance is automatically assigned to each of its bridged call appearances. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Features and technical reference 
1476 Ringing — Abbreviated and Delayed 
20
Detailed description
Ring types fall into two categories:
nThose that alert  consistently and don’t change:
— Ringing, in which the lamp flashes and audible ringing occurs
— Silent ringing, in which the lamp flashes and audible ringing does 
not occur
nThose that transition from one ringing state to another:
— Abbreviated ringing, in which ringing continues for as many cycles 
as specified by the automatic abbreviated/delayed transition interval 
and then changes to silent alerting
— Delayed ringing, in which visual alerting continues for as many 
cycles as specified by the automatic abbreviated/delayed transition 
interval and then changes to ringing
For a station with call appearances that have either abbreviated or delayed ringing, 
an abbreviated-ring button associated with that station’s extension can be assigned 
on a different station. When one of those call appearances is being alerted, 
pressing the button forces immediate transition of the alerting — that is, from 
ringing to silence or from silence to ringing.
This feature is most useful in bridging situations in which some users want to be:
nAudibly alerted to a call immediately upon its arrival
nAudibly notified if the call has not been answered within a specified 
number of rings or if they have indicated.
nAble to stop the audible alerting if the call is not being answered by the 
principal and the user is not able to answer the call.
Because ring type can be specified on a per-station basis, mixing ring-type 
specifications within a station’s access to a particular extension is possible.
For Ringing — Abbreviated and Delayed, each call appearance must be:
nAssigned a ring type
nAdministered to transition when the:
— Abbreviated/delayed transition interval is reached or when the user 
presses the abbreviated ring button
—  user presses the abbreviated ring button, regardless of the 
abbreviated/delayed transition interval