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
Screen reference 
987 Trunk Group 
17
!SECURITY ALERT:
Entering 
y in this field will reduce your ability to prevent toll fraud.
Incoming Dial Type
Indicates the type of pulses required on an incoming trunk group. Usually, you 
should match what your central office provides. Refer to ‘‘Types of address 
transmission’’ on page 1572 for more information. This field appears for Access, 
APLT, DID, DIOD, DMI-BOS, FX, RLT, Tandem, and WATS trunk groups. It 
also appears for Tie trunk groups when the Trunk Signaling Type field is blank, 
cont, or dis.
Valid entries Usage
y
Enter y to allow users to get dial tone directly from the central 
office. Outgoing calls over this trunk group will bypass 
AAR/ARS (if you’re using it) and any of your administered 
restrictions (such as COR or FRL).
n Enter n and the user will receive switch dial tone. Instead of 
digits being sent to the central office, they will be collected and 
checked against administered restrictions. If no restrictions 
apply, the digits are sent to the central office. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
988 Trunk Group 
17
NOTE:
The value in this field affects the appearance of the Incoming Partial Dial 
(sec) field on the Administrable Timer Page.
Wink Timer (msec)
This field allows you to reduce the risk of glare by controlling part of call setup. 
Requirements for the United States domestic network specify that the wink signal 
for wink-start trunks must begin within 5 seconds after a trunk is seized. For 
trunks with a delay-dial start, the wink must not last longer than 5 seconds. While 
some circuit packs are hard-coded to allow the full 5 seconds in both cases, other 
circuit packs allow you reduce the allowed start time and duration, thus reducing 
the window in which glare could occur.
Unlike other fields on this screen, the Wink Timer field therefore controls 2 
different variables. What your entry does depends on the outgoing value in the 
Trunk Type (in/out) field.
Valid entries Usage
tone
 Enter tone to use Dual Tone Multifrequency (DTMF) 
addressing, also known as “touch tone” in the U.S. Entering 
tone actually allows the trunk group to support both DTMF 
and rotary signals. Also, if you’re using the Inband ANI 
feature, enter 
tone.
For pulsed and continuous E&M signaling in Brazil and for 
discontinuous E&M signaling in Hungary, use 
tone.
rotaryEnter rotary if you only want to allow the dial pulse addressing 
method used by non-touch tone phones. Though the tone entry 
supports rotary dialing as well, it’s inefficient to reserve touch 
tone registers for calls that don’t use DTMF.
mfEnter mf if the Trunk Signaling Type field is blank. The 
Multifrequency Signaling field must be enabled on the 
System-Parameters Customer-Options screen in order for you 
to enter 
mf here.
You may not enter 
mf if the Used for DCS field (Field 
descriptions for page 2) is 
y.
For pulsed and continuous E&M signaling in Brazil and for 
discontinuous E&M signaling in Hungary, use 
mf. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
989 Trunk Group 
17
.
This field appears when the “out” side of the entry in the Trunk Type (in/out) field 
is 
…/wink or …/delay and the Group Type is tie, access, aplt, dmi-bos, rlt, or 
tandem. The setting in this field only affects trunks administered to ports on 
TN760C (vintage 4 or later), TN767, TN464C (or later), and TN2242 circuit 
packs. If the trunk group also contains trunks assigned to ports on other types of 
circuit packs, those trunks are unaffected.
Trunk Termination
This field adjusts the impedance of the trunk group for optimal transmission 
quality. Check with your service provider if you’re not sure of the distance to your 
central office.
Disconnect Timing (msec)
This field specifies the minimum time in milliseconds that the central office or 
far-end switch requires to recognize that your switch has disconnected from a call. 
This timer does not affect ports on a circuit pack that uses the administrable 
Incoming Disconnect and Outgoing Disconnect timers; in fact, settings on those 
two timers override this field.
Setting of the Trunk 
Type (in/out) field What the Wink Timer field sets
…/wink
Maximum duration of the wink signal 
(wait-for-wink-to-end)
…/delayMaximum interval after trunk seizure for the wink to 
begin (wait-for-wink-to-start)
Valid entries Usage
300
 to 5000 in 
increments of 
50In general, Lucent recommends that you not change this field. 
If you do, remember that your switch’s timing must be 
compatible with the timing on the far-end switch.
Valid entries Usage
600ohm
Enter 600ohm when the distance to the central office or the 
switch at the other end of the trunk is less than 3,000 feet.
rc Enter rc when the distance to the central office or the switch at 
the other end of the trunk is more than 3,000 feet. 
Valid entries Usage
140
 to 2550 ms 
in increments of 
10The default of 500 is an industry standard and you shouldn’t 
change it. If you set this field too high, your switch won’t 
disconnect sometimes when it should; too low, and it will 
disconnect when it shouldn’t. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
990 Trunk Group 
17
End-to-End Signaling
Auxiliary equipment such as paging equipment and music sources may be 
connected to DEFINITY ECS by auxiliary trunks. The switch may send DTMF 
signals (touch tones) to these devices. This field, which appears for CPE 
(customer-provided equipment) trunk groups, sets the duration of these tones.
NOTE:
For trunks that do not receive real answer supervision, a “connect” Event 
report is sent when the Answer Supervision Timeout occurs.
Analog Gain
Use this field to reduce the strength of incoming signals on TN2199 ports if users 
regularly experience echo, distortion, or unpleasantly loud volume. Experiment to 
find the best setting for your situation. This field appears if the Country field is 
15 
and the Trunk Type (in/out) field is 
2-wire-ac, 2-wire-dc, or 3-wire.
Digit Treatment
Use this field to modify an incoming digit string (as on DID and tie trunks, for 
example) by adding or deleting digits. You’ll need to do this if the number of 
digits you receive doesn’t match your dial plan.
If you enter absorption or insertion, then you must enter a value in the Digits field.
Valid entries Usage
60
 to 360 ms in 
increments of 
10Use this field to set the duration in milliseconds of the 
touch-tone signal that is sent to the connected equipment.
Valid entries Usage
a
  Reduces the incoming signal by -3dB. 
b  Reduces the incoming signal by -6dB.
c  Reduces the incoming signal by -8dB. 
none  No reduction. Don’t change this setting unless the trunk 
group’s sound quality is unacceptable.
Valid entries Usage
blank The incoming digit string is not changed.
absorptionDeletes digits, starting at the beginning of the string.
insertionAdds digits, starting at the beginning of the string. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
991 Trunk Group 
17
NOTE:
In a DCS network, DCS features that use the remote-tgs button (on phones 
at a remote switch) do not work when the incoming trunk group at your 
switch deletes or inserts digits on incoming calls. The remote-tgs button on a 
remote switch, for example, tries to dial a TAC on your switch. If your 
switch adds or deletes digits, it defeats this operation. If you need to 
manipulate digits in a DCS network (for example, to insert an AAR feature 
access code), do it on the outgoing side based on the routing pattern.
Digits
This field is used with the Digit Treatment field, and its meaning depends on the 
entry in that field. If the Digit Treatment field is 
absorption, this field specifies 
how many digits are deleted. If the Digit Treatment field is 
insertion, this field 
identifies the specific digits that are added.
Expected Digits
NOTE:
Set this field to blank if the Digit Treatment field is set to insert and 
the Digits field contains 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.
Valid entries Usage
 1 to 5 Enter the number of digits to be deleted (absorbed).
Up to 4 digits, 
including * and 
#Enter the actual digits to be added (inserted).
blank This field can be blank only if the Digit Treatment field is 
blank.
Valid entries Usage
1
 to 18Enter the number of digits that the far-end switch sends for an 
incoming connection. If your switch is absorbing digits on this 
trunk group, the entry in this field must be larger than the entry 
in the Digits field.
blank If you leave this field blank, you cannot administer digit 
absorption. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
992 Trunk Group 
17
Auto Guard
This field controls ports only on TN438B, TN465B, and TN2147 circuit packs. 
TN438B ports have hardware support for detecting a defective trunk. TN465B and 
TN2147 ports consider a trunk defective if no dial tone is detected on an outgoing 
call, and the Outpulse Without Tone field is 
n on the Feature-Related System 
Parameters screen. 
Call Still Held
This field is used when the receiving switch initiates the disconnection of 
incoming calls. It effectively extends the Incoming Glare Guard timer by 140 
seconds. This field affects only TN438B, TN465B, and TN2147 ports and is used 
primarily when the Country Code field is 
2.
Sig Bit Inversion
When transmission facilities use bit-oriented signaling (such as CAS), 2 bits are 
used to transmit seizure and release signals for calls. Called the A-bit and the 
B-bit, their meaning can vary. For example, in the A-bit a “1” might mean 
on-hook and a “0” might mean off-hook. The entry in the Country Protocol field 
on the DS1 Circuit Pack screen sets the default meaning of these bits.
For trunk ports on TN2242 and TN464B and later circuit packs, this field allows 
you to invert the A- and B-bits as necessary so that the far-end switch can 
understand your switch’s seizure and release signals. If the far-end switch, such as 
a central office, on this trunk group interprets the A- and B-bits differently from 
Valid entries Usage
y/n 
Enter y to prevent repeated seizures of a defective trunk. The 
switch will do a maintenance busy-out on these trunks.
Valid entries Usage
y/n 
Enter y to prevent glare by delaying an outgoing seizure of a 
trunk for at least 140 seconds after it is released from an 
incoming call. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
993 Trunk Group 
17
the default, you may need to invert one or both bits — to change “1” to “0” and 
vice-versa in the A-bit, for example. 
Analog Loss Group
This field determines which administered 2-party row in the loss plan applies to 
this trunk group if the call is carried over an analog signaling port in the trunk 
group. 
Digital Loss Group
This field determines which administered 2-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. 
Incoming Dial Tone
Indicates whether or not your switch will give dial tone in response to far-end 
seizures of the trunk group. 
Valid entries Usage
A
For the TN464B and later circuit packs, indicate which bits, if 
any, should be inverted.
B
A&B
none
 
A and none For the Japanese 2Mbit trunk circuit pack, indicate which bits, 
if any, should be inverted.
Valid entries Usage
1
 to 17Shows the index into the loss plan and tone plan.
Valid entries Usage
1
 to 17Shows the index into the loss plan and tone plan.
Valid entries Usage
y
Enter y if the incoming trunk group transmits digits. For 
example, you would enter 
y for two-way, dial-repeating tie 
trunks that users select by dialing a trunk access code.
nEnter n for trunks that aren’t sending digits, such as tandem or 
incoming CO trunks. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
994 Trunk Group 
17
Line Length
This field appears only when the Group Type field is tie and the Trunk Signaling 
Type field is tge, tgi, or tgu.
NOTE:
Unless one or more trunk members are administered, the administered value 
is not saved when you submit the screen (press 
ENTER). 
Send Release Ack
This field appears when the Trunk Signaling Type field is cont or dis and only 
applies to TN2140 ports (used for Italian and Hungarian tie trunks).
Receive Release Ack
This field appears when the Trunk Signaling Type field is cont or dis and only 
applies to TN2140 ports (used for Italian and Hungarian tie trunks).
Dial Detection
Applies only to TN2199 ports. The Country field must be 
15.
Valid entries Usage
short
long
Valid entries Usage
y/n 
Enter y to send a release acknowledgment in response to a 
forward or backward release signal.
Valid entries Usage
y/n 
Enter y if the switch will receive a release acknowledgment in 
response to a forward or backward release signal.
Valid entries Usage
A-wire
 
B-wire 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
995 Trunk Group 
17
Extended Loop Range
This field appears only for a DID trunk group and is used only with the TN459A 
circuit pack. Enter 
y or n depending on the distance between the central office and 
the switch. If greater than the required distance, then the field should be 
y.
Trunk Gain
This field specifies the amplification applied to the trunks in this group. With the 
values of the Trunk Termination and Country fields, the value in this field also 
determines the input and trans-hybrid balance impedance for TN465B, TN2146, 
TN2147, and TN2184 ports. All other CO and DID circuit packs are set 
automatically to high 
Drop Treatment
This field only applies to DID trunks. It determines what the calling party hears 
when the called party terminates an incoming call.
NOTE:
In Italy, the Drop Treatment field must be administered as intercept for all 
DID trunk groups.
Valid entries Usage
y/n
Valid entries Usage
high
Enter high if users complain of low volume.
lowEnter low if users complain of squeal or feedback.
Valid entries Usage
intercept
Select one. For security reasons, it’s better to apply a tone: 
silence could provide an opening for hackers.
busy
silence
  
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
996 Trunk Group 
17
Bit Rate
This field specifies the baud rate to be used by pooled modems. This field appears 
when the Comm Type field is 
avd or rbavd. It also appears if the Comm Type 
field is 
data, but only if the ISDN-PRI field is y on the System-Parameters 
Customer-Options screen.
Synchronization
This field determines whether the trunk group will use synchronous or 
asynchronous communications. This field appears if:
nthe Group Type field is dmi-bos or isdn
nthe Group Type field is access, co, fx, tandem, tie, or wats and the 
Comm Type field is 
avd or rbavd.
nthe Group Type field is access, co, fx, tandem, tie, or wats, the Comm 
Type field is 
data, and the ISDN-PRI field or the ISDN-BRI Trunks field is 
y on the System-Parameters Customer-Options screen.
Duplex
This field specifies whether a two-way trunk group allows simultaneous 
transmission in both directions. This field appears when the Comm Type field is 
avd or rbavd. It also appears if the Comm Type field is data, but only if the 
ISDN-PRI field is enabled on the System-Parameters Customer-Options screen.
Valid entries Usage
300
Enter the speed of the fastest modem that will use this trunk 
group.
1200 
2400
4800
9600
19200
Valid entries Usage
async
  Do not change this field without the assistance of Lucent or 
your network service provider.
sync