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 
1127 AAR/ARS shortcut dialing 
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nAUDIX
nAUDIX mailboxes allow a maximum of 5 digits when AUDIX is 
connected to a switch that is not administered as a central office. If 
an internal extension is 6 or more digits, the corresponding voice 
mailbox must be set up and accessed with 5 or less digits. AUDIX 
cannot associate a subscriber’s name with 6- or more digit number.
NOTE:
If AUDIX is connected to a switch in a remote location or 
administered as a central office, mailbox IDs can be up to 10 
digits and AUDIX can look up a calling party number longer 
than 5 digits.
nDCS AUDIX (Centralized Messaging)
With shortcut dialing, DCS is not used and AUDIX does not 
associate the name with the calling number. AUDIX associates the 
name with the calling number only when DCS is used in the 
network. 
nISDN - QSIG/AUDIX
A QSIG/AUDIX network can perform name lookup on 3-, 4-, and 
5-digit calling numbers, as well as on longer calling numbers that 
are be truncated to a unique 3-, 4-, or 5-digit mailbox extension.
nAUDIX transfer
Shortcut dialing allows AUDIX Enhanced Transfer to a 3-digit 
extension, but not to a 6- or 7-digit extension.
nCoverage paths for call coverage
Use the short, internal extensions on local coverage paths, even when you 
must dial 6 or more digits for on-switch calls.
nCall center
To call an agent, users must dial the agent’s shortcut dialing number. 
However, the agent must use the agent ID (extension), not the shortcut 
dialing number, to login.
nCall Detail Recording (CDR)
Intra-switch CDR records show the short, internal extensions of the calling 
and called parties when shortcut dialing is used.
Because the AAR or ARS access code is not used in shortcut dialing, the 
Access Code Dialed and Access Code Used fields recorded by CDR are 
blank for trunk calls made with shortcut dialing.  
						

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When a caller dials a CDR account code before the shortcut dialing 
number, the CDR account code is recorded in CDR. 
nCall Management Systems (CMS)
Because the AAR or ARS access code is not used in shortcut dialing, there 
is no feature access code on CMS records to indicate outgoing trunk calls. 
nCall vectoring
In a 5-digit dialing plan, a message step in a vector cannot be updated to 
reflect a 6-digit shortcut number.
nCoverage of Calls Redirected Off Net
You can use shortcut dialing for an off-net destination on a coverage path. 
On networks where 6 or more digits are required, you can use the Remote 
Call Coverage Table even for on-switch coverage points. On a large 
system, however, you may reach the maximum number of remote coverage 
points.
nDistributed Communications System (DCS)
DCS feature transparency is lost on a shortcut dialing call.
nDeluxe paging
Dial the full extension to send a deluxe page. The page may be answered 
with a shortcut dialing number.
nInterdigit timers
The short interdigit timer tracks calls to internal extensions if 
nAAR/ARS shortcut numbers and internal extensions share the same 
first digit
nextensions are shorter than the minimum-length shortcut number
Related topics
Refer to ‘‘
Dial Plan Record’’ on page 593 for information on setting up a dial 
plan.  
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
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Features and technical reference 
1129 Abbreviated Dialing 
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Abbreviated Dialing
Abbreviated Dialing (AD) provides easy access to selected numbers by reducing 
the number of digits users have to dial to place a call. Instead of dialing the entire 
number, the user dials a short code to access the number. The system then dials the 
stored number automatically. You can assign abbreviated dialing buttons to 
phones, so users can dial frequently-called numbers by pressing a single button. 
You can also assign privileged numbers to abbreviated dialing lists, so you can 
allow a user to place calls to numbers that might otherwise be restricted.
!SECURITY ALERT:
Privileged group-number, system-number, and enhanced-number lists 
provide access to numbers that typically would be restricted.
List types
You can store phone numbers in 4 different types of abbreviated dialing lists:
npersonal
ngroup
nsystem
nenhanced
Your switch type and version determines which lists you have available and how 
many entries you can have on each list. You can assign up to 3 AD lists to each 
user (extension). The 3 lists can be made up of any combination of a system list, 
an enhanced list, up to 3 personal lists, or up to 3 group lists. Each abbreviated 
dialing entry can have up to 24 characters.
Personal lists
You can provide personal lists to phone users who need their own set of 
stored numbers. You determine which users have access to a personal list 
and the size of each list. Either you or the user can assign phone numbers to 
personal lists. A personal list is created automatically when you assign the 
list to an individual phone. Each user can have up to 3 personal lists. Note 
that you cannot assign personal list to the attendant.
Group lists
You can define group lists for groups or departments, such as purchasing or 
human resources, where members of the group have the need to frequently 
dial the same numbers. You determine which users have access to group  
						

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lists and each user may have access to up to 3 group lists. You can program 
the list or you can designate a user in each group to program the list. You 
specify this designated user on the Abbreviated Dialing Group List screen.
System lists
You can define one system list for the entire organization. Most 
administrators assign this list to every phone and allows everyone in the 
organization to use the list. If you choose to let everyone use the system 
list, you should only add numbers to the list that anyone in your 
organization may call. For example, you may want to add an emergency 
phone number or phone numbers for other office locations to this list. 
The system list can contain up to 100 entries and can only be changed by a 
system administrator. 
Enhanced lists
Enhanced-number lists are used by telephone users, data-terminal users, 
and attendants who need more list entries than those allowed in 
group-number and system-number lists. One enhanced-number list is 
allowed per system in addition to the system-number list. The 
enhanced-number list can contain any number or dial-access code. You 
administer the enhanced-number lists and determine which users can 
access the list.
Considerations
nYou cannot remove a telephone or attendant if it is designated as the 
extension number that is permitted to program a group-number list.
nWhen using an AD button to access a messaging system, the user’s login 
and password should not be assigned to the button. The system ignores 
button entries after the messaging access number.
nYou can use an abbreviated dialing list at any time during incoming or 
outgoing calls.
Interactions
nLast Number Dialed
The Last Number Dialed feature redials the same number a user just dialed, 
even if the user accessed an abbreviated dialing list for the previous call. 
However, if the last dialed string includes any special characters (such as 
indefinite wait, mark, pause, suppress, or wait) these characters are ignored 
by last-number-dialed call. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
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Features and technical reference 
1131 Access security gateway 
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If the previously-called number was in an AD privileged list, and if the user 
is not normally allowed to dial the number because of his or her class of 
restriction, they cannot redial the number using Last Number Dialed. To 
redial the number, the user must again access the AD privileged list.
Related topics
Refer to ‘‘
Adding abbreviated dialing lists’’ on page 79 for instructions on 
creating abbreviated dialing lists.
Refer to ‘‘
Abbreviated Dialing List’’ on page 459 for detailed descriptions of the 
fields on the abbreviated dialing screens.
Access security gateway
Access Security Gateway (ASG) prevents unauthorized access by requiring the 
use of the ASG Key for logging into the system. The ASG Key can be:
na hand-held device, or
na software module you load on the PC you use for accessing the system.
Detailed Description
Authentication is successful only when DEFINITY ECS and ASG communicate 
with a compatible key. The challenge/response negotiation starts after establishing 
an RS-232 session and you enter a valid DEFINITY ECS login ID. The 
authentication transaction consists of a challenge, issued by DEFINITY ECS and 
based on the login ID entered by you, followed by the expected response, again 
entered by you. The core of this transaction is a secret key, which is 
information-possessed by both the lock (ASG) and the key. Interception of either 
the challenge or response during transmission does not compromise the security 
of the system. The relevance of the authentication token used to perform the 
challenge/response is limited to the current challenge/response exchange 
(session).
NOTE:
ASG does not protect login access to a Multiple Application Platform for 
DEFINITY (MAPD).      
The supported key consists of a hand-held encryption-generating device (ASG 
Key). The key (response generator) device is pre-programmed with the 
appropriate secret key to communicate with corresponding ASG protected login 
IDs on DEFINITY ECS. 
						

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The BCS Products Security Handbook contains information about:
ntoll fraud and what you can do to prevent it.
nmethods people use to gain access to your system, how to detect toll fraud, 
and what to do if you suspect that your system has been compromised.
nsecurity information for many Lucent Technologies products, so you can be 
sure that all of your telecommunications equipment is secure.
nsecurity checklists for each of these products. You should go through these 
with your Lucent representative for each piece of equipment you use.
Interactions
nCustomer Access to INADS Port
If access to the INADS port is disabled on a system-wide basis, 
administering access to the SYSAM-RMT or INADS port, through ASG, 
does not override the INADS port restriction. Administration does not 
prohibit assignment of ASG to the SYSAM-RMT or INADS port. 
However, in a configuration where this method of access is blocked, you 
will be denied access to the system through the SYSAM-RMT or INADS 
port even if you attempt to access the port using a valid ASG login ID.
If access to the INADS port has been disabled on a login basis, 
administering access to the SYSAM-RMT or INADS port, via ASG, will 
not override the INADS port restriction.
nLogin Administration
The standard user interface for DEFINITY ECS login administration has 
not been modified by ASG. Also, the standard DEFINITY ECS login user 
interface is maintained in cases where ASG parameters have not been 
administered for the login and/or port.
nSecurity Violation Notification
ASG does not support an interface to SVN. Session rejection events do not 
appear in the monitor security-violations login report and referral calls are 
not spawned in the event that the number of rejected ASG sessions exceeds 
the threshold/time interval criteria imposed by SVN.
nSecurity Measurements
ASG session establishment or reject events do not increment the Successful 
Logins, Invalid Attempts, Invalid IDs, Forced Disconnects, Login Security 
Violations or Trivial Attempts counters maintained for the list 
measurements security-violations detail report. Additionally, login specific 
information maintained by the measurements security-violations summary 
report does not include ASG related data. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
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Features and technical reference 
1133 Administered Connections 
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Related topics
Refer to ‘‘
Using access security gateway’’ on page 319 for instructions.
Administered Connections
An Administered Connection (AC) is a connection between 2 access or data 
endpoints. DEFINITY ECS automatically establishes the connection based on the 
attributes you administer. An AC provides the following capabilities:
nSupport of both permanent and scheduled connections
nAuto Restoration (preserving the active session) for connections routed 
over Software Defined Data Network (SDDN) trunks
nAdministrable retry interval (from 1 to 60 minutes) per AC
nAdministrable alarm strategy per AC
nEstablishment/retry/auto restoration order based on administered priority
Detailed description
The SDDN provides virtual private-line connectivity using the AT&T Switched 
Network. Access to the service is provided via an Integrated Services Digital 
Network (ISDN) trunk group whose Service Type field is 
SDDN. The system uses 
the Destination field on the Administered Connection screen to route calls when 
AC is active, based on associated authorized time-of-day fields. 
Establish an AC between the following:
nTwo endpoints on the same switch
nTwo endpoints in the same private network, but on different switches
nOne endpoint on the controlling switch and another endpoint off the private 
network
In all configurations, administer the AC on the switch that has the originating 
endpoint. For an AC in a private network, if the two endpoints are on two different 
switches, normally the connection routes via Automatic Alternate Routing (AAR) 
through tie trunks (ISDN, DS1, or analog tie trunks) and intermediate switches. If 
required, route the connection via Automatic Route Selection (ARS) and 
Generalized Route Selection (GRS) through the public network. The call routes 
over associated ISDN trunks. When the far-end answers, a connection occurs 
between the far-end and the near-end extension in the Originator field on the 
Administered Connection screen. 
						

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Administrator’s Guide  555-233-506  Issue 1
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Access endpoints
Access endpoints are non-signaling trunk ports. They neither generate signaling to 
the far-end of the trunk nor respond to signaling from the far-end. Designate an 
access endpoint as the originating endpoint or destination endpoint in an AC. 
Typical AC applications
The following are typical AC applications:
nA local data endpoint connection to a local or remote-access endpoint. 
Examples: a modular processor data module (MPDM) ACCUNET digital 
service connecting to SDDN via an ISDN trunk-group DS1 port; an 
MPDM ACCUNET digital service connecting to an ACCUNET Switched 
56 Service via a DS1 port.
nA local-access endpoint connecting to a local or remote-access endpoint. 
Examples: a DSO cross-connect and a 4-wire leased-line modem to a 
4-wire modem connection via an analog tie trunk.
nA local data endpoint connecting to a local or remote data endpoint such as 
a connection between two 3270 data modules.
NOTE:
The following guidelines do not include AAR and ARS, or GRS 
administration information for routing AC calls over trunk groups. 
See the respective feature elsewhere in this book for that information.
Establishing Administered Connections
The originating switch attempts to establish an AC only if one of the following 
conditions exist:
nAC is active.
nAC is due to be active (either a permanent AC or time-of-day requirements 
are satisfied if it is a scheduled AC).
nOriginating endpoint is in-service or idle state.
If the originating endpoint is not in service or is idle, no activity takes place for the 
AC until the endpoint transitions to the desired state. The originating switch uses 
the destination address to route the call to the desired endpoint. When the switch 
establishes 2 or more ACs at the same time, the switch arranges the connections in 
order of priority. 
						

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AC attempts can fail for the following reasons:
nResources are unavailable to route to the destination.
nA required conversion resource is not available.
nAccess is denied by Class of Restriction (COR), Facilities Restriction 
Level (FRL), or Bearer Capability Class (BCC). Or, an attempt is made to 
route voice-band-data over SDDN trunks in the public switch network.
nDestination address is incorrect.
nDestination endpoint is busy.
nOther network or signaling failures occur.
In the event of a failure, an error is entered into the error log, which generates an 
alarm, if it is warranted by your alarming strategy. You can display AC failures via 
the
 status administered-connection command.
As long as an AC is due to be active, the originating switch continues to establish 
an AC unless the attempt fails because of an administrative error (for example, a 
wrong number) or service-blocking condition (for example, outgoing calls 
barred).
nThe frequency with which failed attempts are retried is determined by the 
administered retry interval (1 to 60 minutes) for each AC.
nRetries are made after the retry interval has elapsed regardless of the 
restorable attribute of the AC.
nACs are retried in priority order.
nWhen you change the time of day on the switch, an attempt is made to 
establish all ACs in the waiting-for-retry state.
Dropping Administered Connections
An AC remains active until one of the following occurs:
nThe AC is changed, disabled, or removed.
nThe time-of-day requirements of a scheduled AC are no longer satisfied.
nOne of the endpoints drops the connection. This could be because of user 
action (in the case of a data endpoint), maintenance activity resulting from 
an endpoint failure, busying out of the endpoint, or handshake failure. If the 
endpoints are incompatible, the connection is successful until handshake 
failure occurs.
NOTE:
An AC between access endpoints remains connected even if the 
attached access equipment fails to handshake. 
						

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nAn interruption (for example, facility failure) occurs between the 
endpoints.
If an AC drops because it was disabled/removed or is no longer due to be active, 
no action is taken. If an AC drops because of changed AC attributes, an immediate 
attempt is made to establish the connection with the changed attributes if it is still 
due to be active. Existing entries in the error/alarm log are resolved if they no 
longer apply. If handshake failure resulted in the dropping of the connection, in 
the case of an AC involving at least one data endpoint, no action is taken for that 
AC until the change administered-connection
 command is executed.
Administered Connections failure: Auto
Restoration and Fast Retry
When an active AC drops prematurely, you must invoke either auto restoration or 
fast retry to determine whether auto restoration is attempted for an active AC.
If you option AC for auto restoration and the connection was routed over SDDN 
trunks, auto restoration is attempted. During restoration, connections are 
maintained between the switch and both endpoints. In addition to allowing the 
active session to be maintained, AC also provides a high level of security by 
prohibiting other connections from intervening in active sessions. Auto restoration 
generally completes before the 60-second endpoint holdover interval. If auto 
restoration is successful, the call might be maintained (no guarantee). The 
restoration is transparent to the user with the exception of a temporary disruption 
of service while restoration is in progress. A successful restoration is reflected by 
the restored state on the status Administered Connection screen. Although the 
restoration was successful, the data session may not have been preserved.
If auto restoration is not active or if the AC is not routed over SDDN trunks, the 
switch immediately attempts to reestablish the connection (fast retry). The switch 
also attempts a retry if the originating endpoint initiated the drop. With fast retry, 
connections are not maintained on both ends. Fast retry is not attempted for an AC 
that was last established via fast retry, unless the AC is active for at least two 
minutes.
If auto restoration or fast retry fails to restore or reestablish the connection, the 
call drops and the AC goes into retry mode. Retry attempts continue, at the 
administered retry interval, as long as the AC is due to be active.
Interactions
nAbbreviated Dialing
Use Abbreviated Dialing entries in the Destination field on the 
Administered Connection screen. Entries must comply with restrictions.