ATT System 25 Administration Manual

							TABLE 5-1 Trunk-Type Codes
If the Trunk Type is:
Ground Start, CO
Ground Start, WATS, FX
Ground Start, PBX/CENTREX
Loop Start, CO
Loop Start, WATS, FX
Loop Start, PBX/CENTREX
DID Immediate Dial
DID Wink Start
Auto-in/Auto-out
Auto-in/Immediate Dial-out
Immediate Dial-in/Auto-out
Immediate Dial-in/Immediate Dial-out
Wink Dial-in/Auto-out
Wink Dial-in/Wink Dial-out
Delay Dial-in/Auto-out
Delay Dial-in/Delay Dial-out
* Default Type
† You must select these codes for Centrex operation.Enter
701*
702
705†
801*
802
805†
901
902*
1001
1002
1003
1004
1005
1006
1007
1008
To assign a trunk
number:
1     At Action =, enter 2.
2     At 
Data =, enter a 4-digit trunk number from 0001 through
9999.
NOTE: Trunk numbers beginning with 9 have special
significance when used with Dial-in tie trunks (1003-1008).
System Administrators should read the section in the
System 25 R3 Reference Manual called “Tandem Trunking”
thoroughly before using any 9xxx-format numbers for tie
trunks.
5-2 Administering TrunksNovember 1995 
						

							Removing a Trunk
To remove a trunk:1     From the Main Menu prompt, enter 1.
2     At Port =, enter the physical port you want to remove in
the form CSSPP.
3     At Action =, enter 1.
4     At Data =, enter 0.
NOTE: When you remove a trunk, any Display ID associated
with the trunk is also removed.
Display Support
To assign or remove aNOTE: This feature is not administrable for DID trunks.
trunk Display ID:
1     At 
Action =, enter 90.
2     At 
Data =, enter the Display ID (not more than 11
characters, enclosed in double quotes), or enter “ ” to
remove the ID.
NOTE: For trunk port type codes:
—701, 702, 801, 802, 805: the default is OUTSIDE
—901, 902: not administrable
—1001 through 1008: the default is BRANCH
Administering Trunks 5-3 
						

							Assigning Class of Service to DID Trunks
To assign Class of Service1     From the Main Menu prompt, enter 1.
(COS) to a DID trunk:
2     At 
Port =, enter the physical port to which you want to
assign Class of Service.
3     At 
Action =, enter 3.
4     At 
Data =, enter the Class-of-Service code which is a
number (1, 2, 3, or 4) equal to the number of digits the CO
sends over this trunk.
The default is 3.
Assigning COS to All Other Trunks
To assign COS to allNOTE: This section assumes that your trunks and the
other trunks:numbers of these trunks have been assigned.
1     From the Main Menu prompt, enter 1.
2     At 
Port =, enter the physical port to which you want to
assign COS in the form CSSPP.
3     At 
Action =, enter 3.
4     At 
Data =, enter the trunk COS code from Table 5-2.
The default is 8. For dial-in tie trunks, only codes 0-7 are
valid; the default is 0.
5-4 Administering Trunks 
						

							TABLE 5-2 Trunk Class of Service (for all trunks except DID)
COS
CODE
0
1
2
3
l
4
5
6
l
l
7
8
9
NIGHTOUTWARDINSHORT
SERVICE
SIGNALING
ONLYDISCONNECT
TT
TT
l
TT
TT
ll
DP
DP
DP
DP
l
l
l
TT
lTTl
10lTTl
11lTTll
12lDP
13lDPl
14lDPl
15lDPll
TT = Touch-Tone
DP = Dial-Pulse
Administering Trunks 5-5 
						

							Class-of-Service Options
Follow the procedures below to assign COS options to this trunk.
Trunk Group Facility1     At 
Action =, enter 4.
Access Code: To assign
2     At 
Data =, if the trunk is in a pooled facility access
this trunk to a trunk
group:group, enter the Facility Access Code (FAC). Enter 0 if
the trunk is not in any group.
The defaults are as follows:
—100 for Loop Start trunks
—101 for Ground Start trunks
—102 for Tie trunks
Dial Access1     At 
Action =, enter 5.
2     At 
Data =, enter 1 if you want to allow dial access, enter
0 if you do not. The default is 1 @.
DGC Group: To assignNOTE: This item is not administerable for trunk types
this trunk to a DGC
1003-1008.
group:
1     At Action =, enter 6.
2     At 
Data =, enter the DGC group number (1-32, or 0 for
none). The default is 0.
Night Service: To chooseTo receive either form of Night Service, this trunk’s COS
either Directed or Trunk-must include Night Service (that is, for Action=3, Data must
Answer-from-Any-Stationbe between 8 and 15). Also, a NIGHT button must be
(TAAS) Night Service forassigned to the attendant console.
this trunk:
@   Strongly recommended this value be used.
5-6 Administering Trunks 
						

							For Directed Night Service, at least one station must be
assigned to receive Night Service calls from this trunk (see
“Administering Voice Stations”).
NOTE: If the trunk is used for Remote Access, it may not be
assigned Directed Night service treatment.
For TAAS Night Service, an external alert must be assigned for
Night Service use.
1     At 
Action =, enter 7.
2     At 
Data =, enter:
-    1 to select Directed Night Service.
-    2 to select TAAS Night Service.
The default is 1.
Delay Announcement:
To assign a Night Service
delay announcement
1     At Action =, enter 8.
2     At 
Data =, enter 1 for first delay announcement, 2 for
second delay announcement, or 0 for none.
The default is 0.
(See the procedure for assigning Directed Night Service
Delay Announcement under “Administering Auxiliary
Equipment.”)
Type of Incoming1     At Action =, enter 9.
Signaling (tie trunks
2     At 
Data =, enter 1 for Touch-Tone signals, or 0 for Dial-
only):
Pulse signals
The default is 0.
NOTE: To connect this tie trunk directly to another Private
Branch Exchange (PBX), see the “Port Options” table in the
“Command Reference” chapter.
November 1995Administering Trunks 5-7 
						

							Trunk Group HuntingFor outgoing calls, each trunk in a trunk group is selected in a
Order (Read Only):
certain sequence. The value returned from this action/data pair
tells you what position in the list this trunk occupies (e.g., first,
second, third ...). The order in which trunks are used is the
reverse of the order in which the trunks were assigned. For
example, if you installed four trunks in the order 1, 2, 3, and 4,
those trunks would be used in the order 4, 3, 2, and 1.
At 
Action =, enter 10. Data shown (1, 2, etc.) is the order in
which that particular trunk will be used (first, second, etc.).
Remote Access: ToNOTE: This feature is not administrable for DID or Tie trunks.
specify remote access
1    At 
Action =, enter 13.
use for this trunk:
2    At 
Data =, enter code for the type of remote access you
want to specify for this trunk, 0 - 2, from the following list:
O - no remote access
1 - shared
2 - dedicated
The default is 0.
Callback Queuing: To1    At 
Action =, enter 14.
allow dial-access users to
queue for this trunk:2    At 
Data =, enter 1 for yes or 0 for no.
The default is 0.
Digital Tie Trunk Loss: To1     At 
Action =, enter 15.
assign a T1 derived Tie trunk
2     At 
Data =, enter 1 for satellite or 0 for tandem.
as satellite (round trip delay is
less than 15 milliseconds) orThe default is 0.
tandem:
Interexchange Carrier1     At Action =, enter 17.
Charge Calls: To
2     At 
Data =, enter:
identify a Trunk pool
with Originating Line- 0: DCC+0 or DCC+01N+ calls are not allowed from Toll
Screening:Restricted stations.
- 1: IXC+O or IXC+O1N+ calls are allowed from Toll
Restricted stations.
5-8 Administering TrunksNovember 1995 
						

							Assigning Trunk Options for a SLAC System
The following options apply only to systems using the Switched Loop Attendant Console
(SLAC), and are not administerable for DID trunks:
To set the priority of a
trunk to ring in the1     At 
Action =, enter 11.
2     At 
Data =, enter a trunk priority number, 0-7:
attendant-console queue
—1 for highest priority
Specify which Attendant
should receive calls from
this trunk:
—7 for lowest priority
—0 for the trunk will not ring in the queue
The default is 0.
1     At 
Action =, enter 12 .
2     At 
Data =, enter the attendant position number, 0 - 2,
from the following list:
—1 for first Attendant
—2 for second Attendant
—0 for either Attendant
The default is 0.
Administering Trunks 5-9 
						

							Administering Auxiliary Equipment
This section discusses how to assign and remove AT&T System 25 auxiliary equipment
associated with special ports. It assumes you understand what special equipment is required and
that you have read the System 25 R3 Implementation Manual and/or the System 25 R3 Reference
Manual to understand which circuit boards you require to connect this special equipment. See the
“Special Feature Port Type Codes” table in the “Command Reference” chapter.
For all procedures in this section, you must first specify the port you want to assign.
To assign or remove auxiliary1     From the Main Menu prompt, enter 1.
equipment options listed in
this chapter, begin with this2     At 
Port =, enter the port number in the form CSSPP.
step:
External Alerts
To assign an external
alert:
1     Follow the procedures stated above.
2     At Action =, enter 1.
3     At 
Data =, enter 253.
4     You see the prompt: 
Action = 2.
5     At Data =, enter the PDC of the associated station, or 0 for
Night Service Alert.
Paging (Associated with Auxiliary Trunk Port)
You can assign Paging to up to three zones. Each paging zone must be assigned to a separate port.
Follow the procedure below to assign an access code and dial restriction to each zone. If, in
addition, you want to assign one access code to all zones, follow the procedure below entitled “To
assign an All-Zone access code.”
November 1995Administering Auxiliary Equipment 6-1 
						

							To assign a Paging
Zone access code:1     Follow the procedures stated on page 6-1.
2     At 
Action =, enter 1.
3     At 
Data =, enter
- 1301 for Zone 1
- 1302 for Zone 2
- 1303 for Zone 3.
4     You see the prompt 
Action = 2.
5     At Data =, enter an access code (PDC) for this zone, or 0
for none.
6     Type a and at Action =, enter 1 to dial restrict the zone, or
0 for no dial restriction.
To assign an All-Zone1     Follow the procedures stated on page 6-1.
access code (if more
2     At 
Action =, enter 3.
than one zone):
3     At 
Data =, enter a PDC for All-Zone access, or 0 for none.
NOTE: The system automatically copies this value to all
paging zones.
Paging (Associated with CO Trunk Port)
If the paging system is connected to a loop or ground start trunk port, simply assign a trunk
facility access code for the port(s) so connected.
To assign Paging to a1     Follow the procedures stated on page 6-1.
loop or ground start
trunk port:2     At Action =, enter 16.
3     At 
Data =, enter 0 or 1.
No = O no paging port
Yes = 1 paging port
NOTE: Trunk type 702 or 802 only.
DGC Delay Announcement
To assign the DGC1     Follow the procedures stated on page 6-1.
Delay Announcement
2     At 
Action =, enter 1.
machine to a port:
3     At 
Data =, enter 255.
6-2 Administering Auxiliary EquipmentNovember 1995