a

Reduces the incoming signal by -3dB.

b

Reduces the incoming signal by -6dB.

c

Reduces the incoming signal by -8dB.

none

No reduction. This setting should not be changed unless the trunk group sound quality is unacceptable.

0

Voice and voice-grade data

1

56 kbps synchronous data transmitted with robbed-bit signaling

2

Less than 19.2 kbps synchronous or asynchronous data

4

64 kbps data on unrestricted channels

1 to 255

The number of trunks that must be busy to alert attendants to control access to outgoing and two-way trunk groups during periods of high use. When the threshold is reached and the warning lamp for that trunk group lights, the attendant can activate trunk group control: internal callers who dial out using a trunk access code are connected to the attendant. Calls handled by AAR and ARS route patterns go out normally.

y

All outgoing calls on this trunk group generate call detail records. If Record Outgoing Calls Only is disabled for CDR, incoming calls on this trunk group also generate call detail records.

n

Calls over this trunk group do not generate call detail records.

r (ring-intvl)

CDR records are generated for both incoming and outgoing calls. In addition, the following ringing interval CDR records are generated:

• Abandoned calls: The system creates a record with a condition code of H indicating the time until the call was abandoned.

• Answered calls: The system creates a record with a condition code of G indicating the interval from start of ring to answer.

• Calls to busy stations: The system creates a record with a condition code of I indicating a recorded interval of 0.

avd

For applications that mix voice and Digital Communication Protocol data, such as video conferencing applications. The receiving end server discriminates voice calls from data calls and directs each to an appropriate endpoint. Neither originating nor terminating ends insert a modem pool for any calls. The Signaling Mode for the DS1 port must be set to either common-chan or CAS signaling.

data

All calls across the trunk group originate and terminate at Communication Manager digital data endpoints. Public networks don’t support data: supported by Avaya’s DCP protocol, this entry is used almost exclusively for the data trunk group supporting DCS signaling channels. The Signaling Mode for the DS1 port must be set to either robbed-bit or common-chan.

rbavd

For digital trunk groups that carry voice and data with robbed-bit signaling. The Signaling Mode for the DS1 port must be set to robbed-bit unless mixed mode signaling is allowed on the DS1 port. In that case, the Signaling Mode must be isdn-ext or isdn-pri.

voice

For trunk groups that carry only voice traffic and voice-grade data (that is, data transmitted by modem). Analog trunk groups must use voice.

0 to 995

The Class of Restriction (COR) for the trunk group. Classes of restriction control access to trunk groups, including trunk-to-trunk transfers. Decisions regarding the use of Class of Restriction (COR) and Facility Restriction Levels (FRLs) should be made with an understanding of their implications for allowing or denying calls when AAR/ARS/WCR route patterns are accessed.

analog

digital

Specifies whether the trunk group is connected to analog or digital facilities at the local telephone company central office (CO).

1 to 25, except for 19

For a list of country codes, see the Country code table.

11

Communication Manager can be administered for Public Network Call Priority (Call Retention and Re-ring).

15

Communication Manager can be administered for Public Network Call Priority (Intrusion and Re-ring).

18

Communication Manager can be administered for Public Network Call Priority (Mode of Release Control, Forced Disconnect, and Re-ring).

23

If the trunk Group Type is either CO or DID, Communication Manager can be administered for Block Collect Calls.

y

Users can gain access to the trunk group by dialing its access code.

n

Users cannot gain access to the trunk group by dialing its access code. Attendants can still select this trunk group with a Trunk Group Select button.

0 to 4

blank

Assigns a digit absorption list, when used, to a trunk group that terminates at a local telephone company central office.

incoming

Traffic on this trunk group is incoming.

outgoing

Traffic on this trunk group is outgoing

two-way

Traffic on this trunk group is incoming and outgoing. Required for Network Call Redirection.

Access

Used to connect satellite servers to the main switch in Electronic Tandem Networks (ETN). Access trunks do not carry traveling class marks (TCM) and, therefore, allow satellite callers unrestricted access to out-dial trunks on the main server. This entry allows Inband ANI.

APLT

Advanced Private Line Termination (APLT) trunks. Used in private networks. This entry allows Inband ANI.

CAMA

Used to route emergency calls to the local community’s Enhanced 911 systems.

CO

Typically used to connect Communication Manager to the local telephone company central office, but can also connect adjuncts such as external paging systems and data modules.

CPE

Used to connect adjuncts, such as paging systems and announcement or music sources, to the server running Communication Manager.

DID

Used to direct callers directly to individuals within an organization without going through an attendant or some other central point. This entry allows Inband ANI.

DIOD

Two-way trunks that are used to transmit dialed digits in both directions. In North America, tie trunks are used for applications that require two-way transmission of dialed digits. This entry allows Inband ANI.

DMI-BOS

Digital Multiplexed Interface - Bit-Oriented Signaling (DMI-BOS) trunks allow communication with systems using DMI-BOS protocol. This entry also allows Inband ANI.

FX

A local telephone company central office (CO) trunk that connects the server running Communication Manager directly to a CO outside the local exchange area. Used to reduce long-distance charges if the organization averages a high volume of long-distance calls to a specific area code.

ISDN

Used when digital trunks are needed that can integrate voice, data, and video signals and provide the bandwidth needed for applications such as high-speed data transfer and video conferencing. ISDN trunks can also efficiently combine multiple services on one trunk group.

Also used for Network Call Transfer.

RLT

Used with Centralized Attendant Service in a private network.

SIP

Used to connect a server running Communication Manager to a Session Manager (SM), or to connect two Communication Manager servers.

Tandem

Used to connect tandem nodes in a private network. This entry allows Inband ANI.

Tie

Used to connect a server running Communication Manager to a local telephone company central office or to another server or switch in a private network. Tie trunks transmit dialed digits with both outgoing and incoming calls. This entry also allows Inband ANI.

WATS

Used to reduce long-distance bills when your organization regularly places many calls to a specific geographical area in North America. With outgoing WATS service, calls can be sent to certain areas (WATS band) for a flat monthly charge. Incoming WATS trunks allow toll-free calling to customers and employees.

Valid extension number

Calls go to this extension number. You can enter any type of extension, though typically the extension entered here identifies a VDN, a voice response unit, or a voice messaging system. Night service overrides this setting when it is active.

attd

Calls go to the attendant and are recorded as Listed Directory Number (LDN) calls on call detail records.

blank

Leave this field blank if Trunk Type (in/out) is not administered as auto/….

rest(tricted)

Restricted trunks use ami-basic or ami-zcs line coding and can carry only restricted calls.

unre(stricted

Unrestricted trunks use b8zs, hdb3, or cmi line coding and can carry restricted or unrestricted calls. A trunk group with an unrestricted ITC can have only unrestricted trunks as members.

An extension number (can be a VDN)

The extension of your night service destination.

attd

Calls go to the attendant and are recorded as Listed Directory Number (LDN) calls on call detail records.

blank

Leave this field blank if Trunk Type (in/out) is not administered as auto/….

0 to 9999

The number of trunks that are members of the Trunk group.

You cannot administer more than 255 trunk members, only if the Number Assignment Method field is set to auto.

y

Displays the trunk group name and number.

n

Displays the digits the caller dials.

inloc

Incoming local. Only the inloc protocol provides ANI.

intol

Incoming toll.

1 to 100

The number of outgoing calls that can wait in queue when all trunks in a trunk group are busy. Calls wait in queue in the order in which they were made. If a queue is administered, a caller hears a confirmation tone when no trunk is available for the outgoing call. The caller can then disconnect and wait; when a trunk becomes available, Communication Manager calls the extension that placed the original call. Communication Manager remembers the number the caller dialed and automatically completes the call.

0

Callers receive a busy signal when no trunks are available. Use for DCS trunks.

access

A tie trunk giving access to an Electronic Tandem Network.

accunet

ACCUNET Switched Digital Service — part of ACI (AT&T Communications ISDN) phase 2.

cbc

Call-by-Call service — provides different dial plans for different services on an ISDN trunk group. Indicates this trunk group is used by the Call-By-Call Service Selection feature.

dmi-mos

Digital multiplexed interface — message-oriented signaling.

i800

International 800 Service — A subscriber can receive international calls without a charge to the call originating party.

inwats

INWATS — provides OUTWATS-like pricing and service for incoming calls.

lds

Long-Distance Service — part of ACI (AT&T Communications ISDN) phase 2.

megacom

MEGACOM Service — an AT&T communications service that provides unbanded long-distance services using special access (switch to 4ESS switch) from an AT&T communications node.

mega800

MEGACOM 800 Service — an AT&T communications service that provides unbanded 800 service using special access (4ESS switch to switch) from an AT&T communications node.

multiquest

AT&T MULTIQUEST Telecommunications Service — dial 700 service. A terminating-user’s service that supports interactive voice service between callers at switched-access locations and service provides directly connected to the AT&T Switched Network (ASN).

operator

Network Operator — provides access to the network operator.

outwats-bnd

OUTWATS Band — WATS is a voice-grade service providing both voice and low speed data transmission capabilities from the user location to defined service areas referred to as bands; the widest band is 5.

public-ntwrk

Public network calls — It is the equivalent of CO (outgoing), DID, or DIOD trunk groups. If Service Type is public-ntwrk, Dial Access can be enabled.

sddn

Software Defined Data Network — provides a virtual private line connectivity via the AT&T switched network (4ESS switches). Services include voice, data, and video applications. These services complement the SDN service. Do not use for DCS with Rerouting.

sdn

Software Defined Network (SDN) — an AT&T communications offering that provides a virtual private network using the public switched network. SDN can carry voice and data between customer locations as well as off-net locations.

sub-operator

Presubscribed Common Carrier Operator — provides access to the presubscribed common carrier operator.

tandem

Tandem tie trunks integral to an ET.

tie

Tie trunks — general purpose.

wats-max-bnd

Maximum Banded Wats — a WATS-like offering for which a user’s calls are billed at the highest WATS band subscribed to by users.

1 to 999

The number of the SIP signaling group associated with this trunk group.

cont

Continuous

dis

Discontinuous

tgu

For outgoing trunks, tgu at the main server running Communication Manager administers a tie trunk group connected to a satellite server. (This same group should be administered as tge at the satellite.)

tge

For incoming trunks, tge at a satellite server administers a tie trunk group connected to the main server running Communication Manager. (This same group should be administered as tgu at the main server.)

tgi

For internal trunks, tgi administers a two-way tie trunk group between two satellites or between the main server and a satellite. (This trunk group should be administered as tgi on both servers.)

cont

Continuous E&M signaling.

pulsed

Pulsed E&M signaling.

discont

Discontinuous E&M signaling.

blank

Leave blank for R2 signaling.

auto

Used for immediate connection to a single preset destination (incoming local telephone company central office trunks, for example). No digits are sent, because all calls terminate at the same place.

cont

Continuous signaling is used with Italian E&M tie trunks. The server/switch seizes a trunk by sending a continuous seizure signal for at least the duration specified by the Incoming Seizure Timer.

delay

The sending switch does not send digits until it receives a delay dial signal (an off-hook signal followed by an on-hook signal) from the far-end switch, indicating that it is ready to receive the digits.

disc

Discontinuous signaling is used with Italian tie trunks that use E&M signaling. The Avaya server can seize a trunk by sending a single, short signal for the duration specified by the Normal Outgoing Seize Send value. However, with the Three-Way Seizure option, the calling end can also send routing information to the called end by sending one or a series of brief seizure signals.

wink

The sending server or switch does not send digits until it receives a wink start (momentary off-hook) signal from the far-end server or switch, indicating that it is ready to receive the digits.

immed

The sending server or switch sends digits without waiting for a signal from the far-end server or switch.

2-wire-ac

2-wire-dc

3-wire

Used with local telephone company central office (CO) trunks in Russia. Select the type of connection to the CO. Check with the network service provider for the type of connection. To use these entries, the Country code must be 15 and the CO trunks must use ports on a TN2199 circuit board.

a

Uses standard signaling for the Netherlands public network.

b

Uses country 1 (U.S.) signaling. This value is appropriate if Communication Manager is connected to a CO using an Ericcson AXE-10 switch.

a

Sets input impedance to 600 Ohms.

b

Sets input impedance to 900 Ohms. This value is appropriate in Brazil.