1 to 17

The index into the loss plan and tone plan. If values are administered other than in between 6 and 10 or 15 and 17, the system displays a warning message indicating that the loss group may not be appropriate for this trunk group.

0 to 250

The number of seconds Communication Manager waits before it acts as though answer supervision has been received from the far-end. During a cut-through operation, timing begins after each outgoing digit is sent and timing ceases after the far-end sends answer supervision. On senderized operation, the timer begins after the last digit collected is sent.

300

1200

2400

4600

9600

19200

The baud rate to be used by pooled modems.

y

Users get dial tone directly from the far end of the trunk. If you set the Cut-Through field to y, some administered restrictions are bypassed.

n

Users receive switch dial tone. Instead of digits being sent to the central office, they are collected, and sent all at once when the user finishes dialing.

y

Communication Manager starts its search from the last trunk seized. This method is faster, and therefore suited for high-traffic trunk groups.

n

Communication Manager starts each search at member 1 (the first trunk administered as a group member).

y

The outgoing trunk call waits until the IGAR trunk call is active.

n

The two trunk calls are set up in parallel. The default value is n.

1 to 19

Determines which administered two-party row in the loss plan applies to this trunk group if the call is carried over a digital signaling port in the trunk group. If values other than 18 or between 11 and 15 are administered, the system displays a warning message indicating that the loss group may not be appropriate for this trunk group.

1 to 5

The number of digits to be deleted (absorbed).

Up to 4 digits, including * and #

The actual digits to be added (inserted).

blank

This field can be blank only if Digit Treatment is not administered.

absorption

Deletes digits, starting at the beginning of the string.

insertion

Adds digits, starting at the beginning of the string.

blank

The incoming digit string is not changed.

y

Allows trunk-to-trunk transfers involving trunks in this group. The far-end server or switch sends a release signal when the calling party releases an incoming call, and the far-end server or switch is responsible for releasing the trunk. Enhances Network Call Redirection.

n

The far-end server or switch does not provide a release signal, the hardware cannot recognize a release signal, or timers are preferred for disconnect supervision on incoming calls. Prevents trunk-to-trunk transfers involving trunks in this group.

y

Allows trunk-to-trunk transfers involving trunks in this group. The far-end sends a release signal when the called party releases an outgoing call, and the far-end is responsible for releasing the trunk. Enhances Network Call Redirection. Available only if Answer Supervision Timeout is 0 and Receive Answer Supervision is enabled.

n

The far-end server or switch does not provide a release signal, the hardware cannot recognize a release signal, or timers are preferred for disconnect supervision on outgoing calls. Prevents trunk-to-trunk transfers involving trunks in this group.

140 to 2550 ms in increments of 10

Specifies the minimum time in milliseconds that the local telephone company central office or far-end server requires to recognize that this server has disconnected from a call. Settings on those two timers override this field.

The default of 500 is an industry standard and should not be changed. If this field is set too high, the server or switch does not disconnect sometimes when it should. If this field is set too low, the server or switch disconnects when it should not.

AandB

Both parties control the disconnect.

AorB

Either party controls the disconnect.

intercept

busy

silence

Determines what the calling party hears when the called party terminates an incoming call. For security reasons, you must apply a tone; silence can provide an opening for hackers. Applies only to DID trunks.

full

Allows simultaneous two-way transmission, which is most efficient.

half

Supports only one transmission direction at a time.

60 to 360 ms in increments of 10

The duration of the touch tone signal sent to auxiliary equipment. Equipment such as paging equipment and music sources might be connected to Communication Manager by auxiliary trunks. Communication Manager might send DTMF signals (touch tones) to these devices. This field sets the duration of these tones.

1 to 18

The number of digits that the far-end server sends for an incoming connection. If the end is absorbing digits on this trunk group, the entry in this field must be larger than the value administered for the number of digits to be absorbed.

blank

Required if Digit Treatment is insert and Digits is a feature access code (for example, AAR or ARS) followed by digits. In this case, the number of digits expected are set on the AAR and ARS Digit Analysis Table and AAR and ARS Digit Conversion Table. If left blank, digit absorption cannot be administered.

y

The distance between the local telephone company central office (CO) and the server is greater than the required distance.

n

The distance between the CO and the server is not greater than the required distance.

public

Indicates that the number plan according to CCITT Recommendation E. 164 is used.

unknown

Indicates the Numbering Plan Indicator is unknown.

private

Indicates the Numbering Plan Indicator is PNP.

unk-pvt

Determines the type of number from the private numbering format, but the Numbering Plan Indicator is unknown.

1 to 15

all

blank

The number of digits, if any, to delete from the calling party number for all incoming calls on this trunk group.

blank

incoming TON unmodified

incoming NPI unmodified

natl-pub

national(2)

E.164(1)

intl-pub

international(1)

E.164(1)

locl-pub

local/subscriber(4)

E.164(1)

pub-unk

unknown(0)

E.164(1)

lev0-pvt

local(4)

Private Numbering Plan - PNP(9)

lev1-pvt

Regional Level 1(2)

Private Numbering Plan - PNP(9)

lev2-pvt

Regional Level 2(1)

Private Numbering Plan - PNP(9)

unk-unk

unknown(0)

unknown(0)

0 to 9

all

blank

Up to 15 digits added to the beginning of the digit string of incoming calls when the calling party is a member of this trunk group.

y

Used if the incoming trunk group transmits digits. For example, this option is used for two-way, dial-repeating tie trunks that users select by dialing a trunk access code.

n

Used for trunks that are not sending digits, such as tandem or incoming local telephone company central office trunks.

tone

Use this entry for Dual Tone Multifrequency (DTMF) addressing, also known as touchtone in the U.S. With this entry, trunk group supports both DTMF and rotary signals. Use this entry for the Inband ANI feature. For pulsed and continuous E&M signaling in Brazil and for discontinuous E&M signaling in Hungary, use tone or mf.

rotary

Allows only the dial pulse addressing method used by non-touch tone telephones. Though the tone entry supports rotary dialing as well, it is inefficient to reserve touch tone registers for calls that do not use DTMF.

mf

Use this option if the Trunk Signaling Type field is blank. The system displays this field only if you set the Multifrequency Signaling field on the System Parameters Customer-Options screen to y. You cannot use this option if the Used for DCS field is y. For pulsed and continuous E&M signaling in Brazil and for discontinuous E&M signaling in Hungary, use tone or mf.

mf2/6

Use this entry for signaling in Spain. This signaling type provides normal public network service and a virtual private network digital trunk service called IBERCOM. Use this entry if the Trunk Signaling Type field is blank.

The system displays this entry only if you enable Multifrequency Signaling for the system. The system does not display this entry if the trunk is used for DCS.

5 to 99

blank

Sets the maximum time to wait to receive all incoming digits from the far-end switch.

short

long

The line length.

tone

Uses Dual Tone Multifrequency (DTMF) addressing, also known as touchtone in the U.S. Allows the trunk group to support both DTMF and rotary signals.

rotary

Allows only the dial pulse addressing method used by non-touch tone telephones. For example, this value is appropriate for an internal full touch tone system and for a connection to a local telephone company central office that only supports rotary dialing.

automatic

For tie trunks if the Trunk Signaling Type is not administered. This provides cut-through operation to outgoing callers who dial a trunk access code, connecting them directly to local telephone company central office dial tone and bypassing any toll restrictions administered on Communication Manager.

mf

Used if a Trunk Signaling Type is not administered.

Available only if Multifrequency Signaling is enabled on the System-Parameters Customer-Options screen. Not available if this trunk is used for DCS.

For pulsed and continuous E&M signaling in Brazil and for discontinuous E&M signaling in Hungary, use tone or mf.

mf2/6

Used if a Trunk Signaling Type is not administered.

Available only if Multifrequency Signaling is enabled on the System-Parameters Customer-Options screen. Not available if this trunk is used for DCS.

r1mf

Enter r1mf for CAMA trunk groups. It is the only outgoing dial type allowed on CAMA trunk groups. Enter r1mf to allow Russian MF Packet Signaling on outgoing trunks. Russian MF Packet Signaling carries calling party number and dialed number information. Group type field must be set to co.

90 to 64800

Defines the session refresh timer. The default value is 600.

250 to 32000 milliseconds

Calls are redirected by ROOF (Redirect on OPTIM Failure) procedures if a call terminates to an Extension to Cellular user cell phone (of any application type) that does not have an associated office telephone (or other method of terminating to a physical telephone), or the office telephone is out of order and Communication Manager receives a disconnect prior to the call being answered. The procedure redirects the call so that the caller does not hear ringback forever.

A

B

A&B

none

For the MM710 media modules.

A and none

For the Japanese 2Mbit trunk.

a

Allows ASAI Flexible Billing. AT&T, Telcordia Technologies, Nortel.

When the Country code for the DS1 media module is 1A, SSA selects AT&T custom supplementary services.

When the Country code for the DS1 media module is 1B, SSA selects Telcordia Technologies Supplementary Services.

When the Country code for the DS1 media module is 1C, SSA selects Nortel Proprietary Supplementary Services.

b

QSIG; also used for SBS signaling trunk groups when full QSIG functionality is needed.

c

ETSI; used for Network Call Deflection.

d

ECMA QSIG

e

Allows ASAI Flexible Billing. Allows DCS with rerouting when the trunk is used for DCS and DCS with Rerouting is enabled.

f

Feature Plus

g

ANSI. Available only if ISDN-PRI or ISDN-BRI Trunks is enabled for the system, or the trunk is used for DCS. Used for Network Call Transfer.

async

sync

Determines whether the trunk group uses synchronous or asynchronous communications.

ascend

Enables a linear trunk hunt search from the lowest to highest numbered channels. All trunks within an ISDN trunk group are selected without regard to the order in which trunks are administered within the trunk group.

cyclical

Enables a circular trunk hunt based on the sequence the trunks were administered within the trunk group. When using ISDN-BRI interfaces, only cyclical is supported. The cyclical option cannot be set if the trunk group using ISDN-PRI interfaces is to be used for Wideband operations.

descend

Enables a linear trunk hunt search from the highest to lowest numbered channels. All trunks within an ISDN trunk group are selected without regard to the order in which trunks are administered within the trunk group.

600ohm

The distance to the local telephone company central office (CO) or to the server at the other end of the trunk is less than 3,000 feet.

rc

The distance to the CO or to the server at the other end of the trunk is more than 3,000 feet.

ground-start

Use ground-start signaling for two-way trunks whenever possible. Ground-start signaling avoids glare and provides answer supervision from the far end.

loop-start

In general, loop-start signaling is used only for one-way trunks. Loop-start signaling is susceptible to glare and does not provide answer supervision.

auto/auto

auto/delay

auto/immed

auto/wink

The term before the slash tells Communication Manager how and when it receives incoming digits. The term after the slash tells Communication Manager how and when it should send outgoing digits.

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

• delay — The sending server running Communication Manager 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 server or switch, indicating that it is ready to receive the digits.

• immed — The sending server running Communication Manager sends digits without waiting for a signal from the far-end server or switch.

• wink — The sending server running Communication Manager 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.

2-wire-ac

2-wire-dc

3-wire

These entries are used with local telephone company central office (CO) trunks in Russia. The specific CO should match one of these values.

Available only if the Country code is 15 and the CO trunks use ports on a TN2199 circuit board.

y

Uses the Unicode name.

n

Uses the name as specified on the station form.

auto

The choice to use the station name or the Unicode name is automatically determined based on the called phone's capability and the user's preference.

auto

modem

fax

tty

Identifies treatment of an incoming trunk call. When set to modem, fax, or tty, the serving digital signal processor algorithms is placed in immediate pass-through mode. Use this field when the incoming trunk is transporting the XOIP traffic. By identifying this external equipment through administration, VoIP firmware uses this field to determine if it is necessary to immediately attempt to put a call in pass-through mode so that the DSPs do not miss identification of the initial tone events. Default is auto.