ATT DEFINITY Communications System Generic 3V4 Instructions Manual

							Call Scenarios and Applicationsbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
Call Sequence 3 shows an incoming call on an ISDN-PRI trunk delivered to
VDN A.  (This call sequence uses the same VDN as call sequence 2.)  The
ISDN trunk is configured for MultiQuest service.  The incoming call indicates in
its SETUP message that Flexible Billing is NOT supported.  The call is adjunct-
routed.  The adjunct sees that Flexible Billing is NOT enabled and routes the
call to split 2.  The call rings at agent 5001 and is answered.
In scenario 2, the agent knew that Flexible Billing was available on the call
since the call routed to split 1.  In scenario 3, the agent knew to bill by a means
other than Flexible Billing since the call routed to split 2.
Host4ESS
Route Request
Call Offered Event
Comment
Route SelectSwitch DEFINITY
PBX
(ßexible billing disabled)
Call SETUP message
(service=multiquest)Call placed to VDN.
Switch requests route
Adjunct replies with
Call answered by agent (ßexible = ßexible billing)
Alerting Event
Connected Eventfor call
route
Call offered to split 2
Call rings at agent Flexible billing not
indicated.
(destination = split2)
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ASAI and Generic 3 Switch
Requirements
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This appendix provides capacity requirements and constraints for ASAI on the
Generic 3 switch (G3i and G3r).
Capacity Requirements and
Constraints
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Table B-1.  System-Wide ASAI Limitsbbbbbbbbbbbbbbbbbbbbb
Capacity G3s G3i G3r
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ASAI Links 4 8 8 |
Notification Associations 50 170 2,000 |
Adjunct-Control Associations 75 300 3,000  |
Domain-Control Station Associations 250 2,000 6,000 |
Domain-Control Split Associations 99 99 255 |
Simultaneous Call-Class Originators 20 40 400 |
Simultaneous Billing Change Requests 25 100 1,000 |
Simultaneous Intern. Meas. Data Queries 25 25 50 |c c c
c
c
c c c
c
c
c c
c c c
c
c
c c c
c
c
c c
c c c
c
c
c c c
c
c
c c
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System Limits
Ð The maximum number of ASAI links is four for G3s, eight for G3i,
and eight for G3r.
Ð The maximum number of active-notification associations is 50
for G3s, 170 for G3i, and 2,000 for G3r.
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Ð The maximum number of adjunct-control associations is 75 for
G3s, 300 for G3i, and 3,000 for G3r.1 This number consists of the
total active Third Party Make Call (or Third Party Take Control
Calls) plus any in-progress Third Party Call Control requests (made
over a domain control association).  It also includes outstanding
adjunct routing requests as well as outstanding feature and value
query requests.
Ð The switch sets aside internal resources for the maximum number
of domain-control station associations (250 for G3s, 2,000 for
G3i, and 6,000 for G3r). When multiple domain-control associations
(maximum of two) are controlling the same station, each
association uses resources from the pool.  Thus, when there are
two controllers per station, then the number of stations that may be
domain-controlled is 125, 1,000, or 3,000, respectively.
Ð The switch sets aside internal resources for the maximum number
of domain-control split associations (99 for G3s and G3i, and
255 for G3r), which is the maximum number of hunt groups.
Ð The maximum number of call-classifier originators is 20 for
G3s, 40 for G3i, and 400 for G3r.  This number determines the
maximum number of outbound switch-classified calls using a call
classifier resource that may be in progress simultaneously.  Such
calls require the call classifier until the call is classified (destination
answers or call is dropped), and then the switch releases the
classifier.  This number does not limit the number of connected
outbound switch-classified calls active at a given time.
Ð The maximum number of simultaneous billing change requests
is 25 for G3s, 100 for G3i, and 1000 for G3r.
Ð The maximum number of simultaneous internally measured
data queries is 25 for G3s, 25 for G3i, and 50 for G3r.
Per station domain:
Table B-2.  ASAI Limits per Station
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Capacity G3s G3i G3r
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Domain Controllers per Station Domain 2 2 2c c c c
c c c c
c c c c
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1.  The limitation may  be particularly relevant for  OCM  applications.  Value queries would be made as part of the
call pacing algorithm and the Third Party Make Call capability would actually place the calls.
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Ð The maximum number of active domain-control associations per
station is two.
Ð The maximum number of associations that can control a station on
a call is three, two domain-control associations and one call-control
association.
Per ACD split domain:
Table B-3.  ASAI Limits per ACD Split Domain
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Capacity G3s G3i G3r
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Active Notifications per Split Domain 3 3 3
Domain Controllers per Split Domain 1 1 1c c c c c
c c c c c
c c c c c
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Ð The maximum number of active notifications per split domain is
three.
Ð The maximum number of domain controllers is one.
Per VDN domain:
Table B-4.  ASAI Limits per VDN Domain
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Capacity G3s G3i G3r
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Active Notifications per VDN Domain 3 3 3c c c
c
c c c
c
c c c
c
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Ð The maximum number of active notifications per VDN domain is
three.
Per call:
Table B-5.  ASAI Limits per Call
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Capacity G3s G3i G3r
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Adjunct-Control Associations per Call 1 1 1
Active Notif. Associations per Call 3 3 3
Domain Control Associations 12 12 12 c c c c
c
c
c c c c
c
c
c c c c
c
c
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Ð The maximum number of adjunct-control associations per call is
one.
Ð The maximum number of active-notification associations per call is
three.
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Ð The maximum number of domain-control associations per call is 12
(since the maximum number of stations on a call is six and each
may have two domain control associations).
Ð The maximum number of associations that can control a call is 13,
two domain-control associations per station on a call and one
adjunct-control association (2x6+1).
Ð Typically, the maximum number of associations that can receive
event reports for a single call is 16 (13 Controlling and three
active-notification).  The exception to this rule is the transfer event.
Up to 18 associations may be sent a transfer event.
Per ASAI interface (per link):
Table B-6.  ASAI Limits per Link
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Capacity G3s G3i G3r
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CRVs switch-to-adjunct 127 127 127c c c
c
c c c
c
c c c
c
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Ð The maximum number of simultaneous ASAI associations that the
switch supports in the switch-to-adjunct direction on any link is 127
(for example, there cannot be more than 127 pending routing
requests on an ASAI link).
Ð The maximum number of simultaneous associations supported in
the other direction (for example, adjunct-to-switch) depends on the
length of the ASAI CRV value.  The maximum length of the ASAI
CRV value field is two bytes.  An administration option lets a
customer set the length of the CRV value to 1 or 2 bytes.  The
maximum number of associations that an adjunct can initiate and
have active on an ASAI interface at any one time depends on how
this parameter is administered:
If the CRV values are administered to a single byte, then the
adjunct may initiate and have active 127 simultaneous
associations on any given ASAI interface (subject to
availability of resources set by the other system
parameters).
If the CRV values are set at two bytes, the maximum
number of associations is limited by the availability of other
switch resources, not the number of CRVs (32,767).  That is,
the maximum number of associations that the switch can
support over all ASAI interfaces (combined) is less than the
number of available CRVs when a 2-byte CRV length is
administered.  The demands on other switch resources
prevent an adjunct from ever reaching the theoretical
maximum of 32,767.
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Glossary
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ACDAutomatic Call Distribution
ACD agent/extensionA station extension that is a member of an
Automatic Call Distribution (ACD)
split/skill/hunt group.
ACD callA call directed to an ACD split/skill/hunt group
either directly or through vector processing.
ACD split/skill/hunt groupA specific type of hunt group that distributes
similar type calls to the available agent/station
extension that has been idle for the longest
time.
Active callFor the Send DTMF Signals feature, a call
that has received answer supervision, either
network or timed (that is, resulting from
elapse of a software timer), and has assigned
listen and talk time slots.  Therefore, for Send
DTMF Signals purposes, an answered call on
hold is an active call.
Active-Notification
AssociationA ``link initiated by the adjunct allowing it to
receive Event Reports for a specific switch
entity; for example, an outgoing call.  This
association is initiated by the adjunct via the
Event Notification Request capability.
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Active-Notification CallA call for which Event Reports are being sent
over an active-notification association
(communication channel) to the adjunct.
Sometimes referred to as a ``monitored call.
Active Notification DomainA VDN or ACD Split extension for which
Event Notification has been requested.
Adjunct
See Application.
Adjunct-Control AssociationA relationship initiated by an application via
the 
Third Party Make Call, Third Party Take
Control
, or Domain (Station) Control
capabilities to set calls up and control calls
already in progress.
Adjunct-Controlled CallIncludes all calls that can be controlled using
an adjunct-control association. These calls
must have been originated via the 
Third Party
Make Call 
or Domain (Station) Control
capabilities, or must have been taken control
of via the 
Third Party Take Control or Domain
(Station) Control 
capabilities.
Adjunct-Controlled SplitAn ACD split administered to be under
adjunct control.  Agents logged into such
splits must do all telephony and ACD login
and/or logout and change work mode
functions through the adjunct (except for
auto-available adjunct controlled splits, whose
agents may not be logged in and/or logged
out or have their work modes changed).
Adjunct-Monitored CallIncludes all adjunct-controlled calls, active-
notification calls, and calls that provide event
reporting over domain-control associations.
Adjunct ProcessorAlso called Application Processor.  A
customer-provided processor used in
conjunction with ASAI for call monitoring and
control. 
See also ASAI Host/Adjunct
Processor.
Adjunct RoutingA vector command/step that allows the switch
to request a route/destination, from an ASAI
adjunct, for the call executing the vector
command/step. When an adjunct routing
vector command is encountered, the switch
disconnects any tone detector/call prompter
connected to the call and discards any
dial-ahead digits that had been collected.
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Collected digits are retained with the call and
sent to the adjunct in the Route Request
message.
AnnouncementAn administered extension that provides a
recorded message.  DEFINITY supports both
internal (announcement circuit pack - TN750)
and external (TIE trunk connected to
recording device; for example, A15 Unit)
announcement sources.
Answer SupervisionA signal sent by a terminating communication
system to an originating communication
system, or intermediate charging point, such
as a central office (CO) switch, indicating that
an incoming call has been answered. Upon
receiving this signal, the originating system or
other charging point begins tracking charges
for the call, if charges apply.
In terms of network services, answer
supervision is a feature offered by the
network provider on certain types of trunks.
APAdjunct Processor (or Application Processor).
ApplicationAn adjunct entity that requests and receives
ASAI services or capabilities. One or more
applications can reside on a single adjunct.
However, the switch cannot distinguish
among several applications residing on the
same adjunct and treats the adjunct and all
resident applications as a single application.
The terms ``application and ``adjunct are
used interchangeably. 
See also ASAI
Application.
Application Processor
See Adjunct Processor, ASAI Host/Adjunct
Processor.
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ASAIAdjunct Switch Application Interface (ASAI).
1. The AT&T recommendation for
Computer Telephony Integration (CTI)
based on the CCITT Q.932 protocol.
2. An option on the DEFINITY switch that
enables the ASAI messaging interface.
Also called CallVisor ASAI.
Adjunct Services Application Interface (ASAI).
1. A messaging interface between the
switch and an Adjunct Processor that
allows the AP to perform call monitoring
and control functions.
ASAI ApplicationAn application running on an ASAI adjunct by
making calls to a library written to meet the
ASAI specifications. 
See also Application.
ASAI Host/Adjunct ProcessorA computer processor that communicates
with the switch via an ASAI link. 
See also
Application Processor.
ASAI linkAn ISDN BRI or Ethernet interface configured
to support ASAI.
AssociationA communication channel between the
adjunct and switch for messaging purposes.
An active association is an existing call on the
switch or an extension on the call.
Or, a single instance of an ASAI capability
group (for example, Third Party Call Control,
Notification, Third Party Domain Control,
Routing) between an ASAI adjunct and the
switch.
Also, a virtual relationship established
between the switch and the AP used to relate
messages and events to a particular call or to
an ASAI capability.  An association is
represented by a unique Call Reference
Value (CRV)/link combination.
Auto-available SplitA specific type of ACD split/hunt group that
automatically logs in its members and places
them in auto-in mode as soon as the switch is
initialized or when a member is added to the
auto-available split. Normally used when
dedicated equipment answers the call
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directed to the split.  Also, allows the
movement of agents to other splits without
the agent being logged out.
Automatic-answer (auto-
answer)A feature that allows an agent to receive ACD
calls while off-hook.
Available AgentAn agent available to receive a call through
an ACD split (ACD call); that is, an agent
who/which is logged in and not on a call, and
in the auto-in or manual-in work mode.
Basic Call Management
SystemSwitch features that provide a subset of the
functionality of a CMS.
BCMSBasic Call Management System
Billing Number (BN)The 10-digit number (North America) that is
billed when the calling party makes a toll call.
The BN is not always identical to the Calling
Party Number (CPN); for example, a
company may have a BN of 555-7000, yet an
individual at the company may have a CPN of
555-7335. Taken together, the CPN/BN
information allows the called party to identify
the calling party and determine call volumes
from particular geographic areas. 
See also
Calling Party Number (CPN).
BNBilling Number
BRIThe ISDN Basic Rate Interface specification.
Call Control CapabilitiesCapabilities (
Third Party Selective Hold, Third
Party Reconnect, Third Party Merge
) that can
be used in either of the Third Party Call
Control ASE (cluster) subsets: Call Control
and Domain Control.
Calling Party Number (CPN)The 10-digit number (North America) of the
station that is calling. The CPN is not always
identical to the billing number (BN); for
example, a company may have a BN of 555-
7000, yet an individual at that company may
have a CPN of, for example, 555-7335.
Taken together, CPN/BN information allows
the called party to identify the calling party
and to determine call volumes from particular
geographic areas. Formerly called station
identification (SID). 
See also Billing Number
(BN).
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