Lucent Technologies Definity Prologix Solutions Release 2.0 Instructions Manual

							10 World Class RoutingDEFINITY ProLogix Solutions Release 2 Overview 
555-235-100 Issue 2 June 1999 10-9
World Class Routing supports the Automatic Route Selection and Automatic Alternate Routing as separate 
features, but through generalized administration applicable to both features, provides both the same routing 
abilities. In addition, there are a number of capabilities that enhance the flexibility of routing in supporting 
your domestic and/or global calling requirements.
For example, 18-digit routing allows DEFINITY ProLogix Solutions to determine call routing by analyzing 
up to 18 digits with no restriction on the grouping or format of the digits, eliminating any assumptions about 
the use of a particular dialing plan.
International Direct Distance Dialed calls generally consist of an international access code, a country code, 
and a national number. Both codes may vary in length. DEFINITY ProLogix Solutions’ support for 
International Direct Distance Dialed calls eliminates any restriction on the grouping and format of digits on 
Automatic Route Selection numbers. Call routing is determined by the digits and the length of the dialed 
number.
Multinational World Class Automatic Alternate Routing allows the Automatic Alternate Routing number 
(Electronic Tandem Network number) to be any number of digits in length.
Digit conversion can be used to reroute numbers, initially dialed to use Automatic Route Selection, to be 
converted to use Automatic Alternate Routing and vice versa. This utility can analyze a maximum of 18 
digits. In this way, destinations in a customer’s network can be called using the public network number. This 
feature can also be used to reroute certain Direct Distance Dialed destinations to specified alternate 
destinations (such as intercept, attendant, or another Direct Distance Dialed number). 
						

							10 Network Management FeaturesDEFINITY ProLogix Solutions Release 2 Overview 
555-235-100 Issue 2 June 1999 10-10
Network Management FeaturesDEFINITY ProLogix Solutions has a variety of features that enable you to manage your network resources 
effectively. Here are just a few examples of the DEFINITY ProLogix Solutions’ features that can be used to 
manage your network: Time of Day Routing, Automatic Route Selection, Automatic Alternate Routing, 
Additional Network Feature Path Replacement, Subnetwork Trunking, Generalized Route Selection, 
Facility Restriction Level, Bearer Capacity Class, Remote Network Access, Public Network Call Priority, 
and Authorization Codes.Time of Day RoutingTime of Day Routing allows you to select the most economical routing of Automatic Route Selection and 
Automatic Alternate Routing calls based on the time of day and week a call is made.
With Time of Day Routing, your company can take advantage of lower calling rates during specific times. If 
your company has locations in different time zones, you can maximize the use of your public or private 
network facilities by utilizing those in the location that has the lowest calling rates at the particular time a 
call is made. You can also use this feature to change the routing patterns when an office is closed and to 
eliminate unauthorized calls. You can set up eight separate time of day charts to control routing at different 
times of the day. 
						

							10 Network Management FeaturesDEFINITY ProLogix Solutions Release 2 Overview 
555-235-100 Issue 2 June 1999 10-11
Automatic Route SelectionAutomatic Route Selection routes public network calls on the most desirable (usually the most economical) 
trunking facilities available on your DEFINITY ProLogix Solutions when the call destinations are 
accessible through your public network.
DEFINITY ProLogix Solutions supports up to 254 routing patterns. Each routing pattern consists of up to 6 
routing preferences (types of facilities) set up in the order you want them checked when a call is placed. 
Typically, the least expensive facility will be first on the list; the most expensive will be last.
If Generalized Route Selection is not being used when a call is made, the system selects a routing pattern 
based on the digits dialed. The routing preferences in that pattern are checked in the order they were listed, 
and the first available facility is used to place the call. If a facility is not available, the call can be queued 
until a facility becomes available.Automatic Alternate RoutingAutomatic Alternate Routing enables you to ensure that private network calls will be routed over the various 
trunking facilities available in your private network in the most effective manner possible. As with 
Automatic Route Selection, you set up various patterns for routing calls — in this case, with the private 
network. Depending on your DEFINITY ProLogix Solutions’ configuration, you can have up to 254 routing 
patterns. Each pattern includes a primary preference — the most preferred and direct route — and 5 alternate 
preferences. If the primary preference in a pattern is unavailable, the system searches the alternate 
preferences in the specified order until it finds one available. 
						

							10 Network Management FeaturesDEFINITY ProLogix Solutions Release 2 Overview 
555-235-100 Issue 2 June 1999 10-12
Generalized Route SelectionGeneralized Route Selection gives you the capability to select not only the optimal call routing based on the 
dialed number, but also select the appropriate facility based on the type of call. Generalized Route Selection 
enhances Automatic Route Selection and Automatic Alternate Routing by incorporating additional 
parameters such as the type of call to be used in the decision of how a call is routed.
Different types of calls require the use of different types of facilities. For example, high-speed data calls 
must use digital facilities, whereas voice and voice-grade data calls can use either analog or digital facilities. 
DEFINITY ProLogix Solutions uses Generalized Route Selection to differentiate between these and other 
types of calls and route them on the appropriate trunks. Based on the call types and available trunk facilities, 
voice and data calls may be routed over different trunk types or integrated on the same trunk group. 
DEFINITY ProLogix Solutions also provides the capability to route calls based on the data format and the 
need for restricted or unrestricted facilities.
In order to select the appropriate trunking facility for a call, DEFINITY ProLogix Solutions must know the 
type of call being made. In order to do this, each originating facility such as a telephone or data module has 
a bearer-capability class assigned. Some originating facilities, such as data modules, may have multiple 
bearer- capability classes. Each trunk group in the routing pattern is assigned a list of allowed bearer-
capability classes. When a user makes a call, the system queries the originating facility for its bearer-
capability class and then tries to route the call on a trunk group with a bearer-capability class that matches 
the bearer-capability class of the originating facility. If an exact match is not found, the system then tries to 
find a trunk group with a compatible bearer-capability class.
Since the system automatically chooses the right trunk based on the system administration, DEFINITY 
ProLogix Solutions’ dial plan can be independent of the type of call being dialed. This flexibility makes life 
easier for your system users, who do not have to worry about dialing a different access number for different 
call types. 
						

							10 Network Management FeaturesDEFINITY ProLogix Solutions Release 2 Overview 
555-235-100 Issue 2 June 1999 10-13
Facility Restriction LevelFacility Restriction Levels are used to limit user calling privileges for incoming and outgoing calls. The 
Facility Restriction Level determines if a call attempt is permitted and which routes can be used or denied in 
the routing process. Eight levels of Facility Restriction Levels can be assigned to telephones, computers, and 
system management tools. DEFINITY ProLogix Solutions does not require the Facility Restriction Level to 
be in an ascending order when administered in the patterns or preferences through system management.
When a call is attempted, the system compares the Facility Restriction Level of the telephone with the 
Facility Restriction Level of the trunk routes available to complete the call. If the Facility Restriction Level 
of the telephone is equal to or higher than the Facility Restriction Level of trunks, the call is completed; if it 
is lower, the call is blocked on that preference and compared to the Facility Restriction Level of the next 
route available. If the call fails to match the Facility Restriction Level on the available preferences, the call 
may queue for the first available and compatible trunk group (equal to or higher).
DEFINITY ProLogix Solutions also provides a feature called Alternate Facility Restriction Levels that 
allows the attendant to change the Facility Restriction Levels on originating facilities temporarily to a 
different set of Facility Restriction Levels. It is used to grant users greater access to trunking facilities than is 
normally provided, such as when charges are lower during evening hours. 
						

							10 Network Management FeaturesDEFINITY ProLogix Solutions Release 2 Overview 
555-235-100 Issue 2 June 1999 10-14
Authorization CodesAuthorization codes are used on particular calls to raise a telephone’s Facility Restriction Level temporarily. 
This feature is useful for those who make calls from telephones other than their own or from outside the 
network. If a call you dial is blocked because the telephone’s Facility Restriction Level is too low, you can 
enter your authorization code. If the Facility Restriction Level associated with the authorization code is 
equal to or higher than the Facility Restriction Level of the trunk facilities required to place the call, the call 
is then completed. Up to 5,000 different authorization codes will be in effect for your system at any one 
time. Using DEFINITY ProLogix Solutions’ system management tools, you can assign authorization codes 
and change their associated Facility Restriction Level and network access permissions. 
						

							10  Network Interfaces and EquipmentDEFINITY ProLogix Solutions Release 2 Overview 
555-235-100 Issue 2 June 1999 10-15
Network Interfaces and EquipmentDEFINITY ProLogix Solutions supports a variety of interfaces to voice and data networks. Trunks supply 
links between DEFINITY ProLogix Solutions, the public network, and other switches. DS1 interfaces offer 
high-speed digital connectivity between switches.Trunk Group CircuitsTrunks provide the communications links between DEFINITY ProLogix Solutions and other switches, 
including central office switches and other premises switches. Trunks that perform the same function are 
grouped together and administered as trunk groups. Trunks interface with DEFINITY ProLogix Solutions 
via port circuit packs. DEFINITY ProLogix Solutions’ trunk group circuit types include the following.Local Exchange 
Tr u n k s
Local exchange trunks connect DEFINITY ProLogix Solutions to a central office. 
The following are some of the types available:•
central office trunks, which connect DEFINITY ProLogix Solutions to the local 
central office for incoming and outgoing calls
•
foreign exchange trunks, which connect DEFINITY ProLogix Solutions to a 
central office other than the local one
•
Wide Area Telecommunications Service trunks, which allow you to place long-
distance outgoing voice-grade calls to telephones in defined service areas, priced 
according to distance in the service area, length of the call, time of day, and the 
day of the week 
						

							10  Network Interfaces and EquipmentDEFINITY ProLogix Solutions Release 2 Overview 
555-235-100 Issue 2 June 1999 10-16
•
800-service trunks, which let your business pay the charges for inbound long-
distance calls so that callers can reach you toll-free
•
Direct Inward Dialing trunks, which connect DEFINITY ProLogix Solutions to 
the local central office for incoming calls dialed directly to stations without 
attendant assistance
•
Digital Service 1 trunks, which can be used to provide T1 or ISDN Primary Rate 
Interface service
Tie Trunks
Tie trunks carry communications between DEFINITY ProLogix Solutions and other 
switches in a private network. Several types of trunks can be used, depending on the 
type of private network you establish.
Auxiliary Trunks
Auxiliary trunks connect devices with the switch. Some of the features that are 
supported with this type of trunk are recorded announcements, telephone dictation 
service, malicious call trace, and loudspeaker paging.
Centralized 
Automatic Message 
Accounting (CAMA) 
and Enhanced 911 
Tr u n k s
The Enhanced 911/Centralized Automatic Message Accounting (CAMA) trunk 
interface circuit pack enables DFEINTIY ProLogix Solutions to interface with 
Centralized Automatic Message Accounting trunks to provide Caller’s Emergency 
Service Identification (CESID) information to the local community’s Enhanced 911 
system through the local central office. With this feature, Enhanced 911 systems can 
see the extension number on the DEFINITY ProLogix Solutions system. This is 
required by some legislative and regulatory laws in certain states in the United States. 
						

							10  Network Interfaces and EquipmentDEFINITY ProLogix Solutions Release 2 Overview 
555-235-100 Issue 2 June 1999 10-17
Incoming Call 
Identification 
(ICLID) on Analog 
Tr u n k s
DEFINITY ProLogix Solutions supports incoming calling party information on 
analog trunks in the United States and Japan. In these countries, the user’s terminal 
displays calling party information. Name and calling number are available from 
central offices in the United States; only the calling number is available from central 
offices in Japan. This feature may be used in countries that comply with either United 
States or Japanese requirements. The display name and number will work with all 
DEFINITY digital voice terminals (Digital Communication Protocol and Basic Rate 
Interface) equipped with a 40-character or a 32-character alphanumeric display.
Miscellaneous 
Tr u n k s
Miscellaneous trunks perform functions that do not fit neatly into any of those 
already described:•
release-link trunks are used between switch locations to provide Centralized 
Attendant Service.
•
remote-access trunks provide off-premises users with access to DEFINITY 
ProLogix Solutions’ features and networking.
Digital Interfaces
Lucent Technologies supports both T1 and E1 facilities. As industry standards 
around the world, T1 and E1 facilities provide the latest alternative to analog 
trunking.E1 InterfaceDEFINITY ProLogix Solutions also supports E1 connections. T1/E1 access and 
conversion allows simultaneous connection to both T1 (1.544 Mbps) and E1 (2.048 
Mbps) facilities (using separate circuit packs). 
						

							10  Network Interfaces and EquipmentDEFINITY ProLogix Solutions Release 2 Overview 
555-235-100 Issue 2 June 1999 10-18
T1 InterfacesWhen planning your networking requirements, one of the options you should 
consider is multiplexing over Digital Services 1 (DS1) facilities. As the industry 
standard for interconnecting digital systems, DS1 is an economical alternative to 
analog trunking arrangements. Multiplexing up to 24 digitized voice/data 
communications paths onto a single T1 carrier or other high-speed digital facility 
(such as fibre or microwave) can reduce your network trunking and equipment costs.
Used to connect switches to the public network or to other switches in a private 
network, DS1 also delivers high-speed, end-to-end digital connectivity. Voice and 
data calls are completed at transmission speeds of up to 64 Kbps.
DEFINITY ProLogix Solutions offers several options in supporting the DS1 
interface. The options include support for voice-grade DS1, alternate voice/data, and 
Digital Multiplexed Interface. The voice-grade DS1 interface is a T1 D4 channel-
bank-compatible interface.