ATT Definity Addendum 1 For Ds1, Dmi, Isdn Pri Instructions Manual

ADMINISTRATION OPTIONS AND REQUIREMENTS — SYSTEM 75 R1V5 & GENERIC 17-163
BCC Values
Each routing pattern preference (1 through 6) has an associated BCC Value field.
Therefore, when a preference is translated, the associated BCC must also be translated.
A trunk group preference must be valid for one or more BCC values. Permitted
entries are y to enable the value and n to disable the value.½
A route can only be selected when there is compatibility (a match) with the BCC of
the call originating extension...

7-164ADMINISTRATION OPTIONS AND REQUIREMENTS — SYSTEM 75 R1V5 & GENERIC 1½
HUNT GROUPPage 1 of 6
Group Number:Group Extension:
—Group Type: ucd
Group Name:Coverage Path:
COR: 1Security Code:Message Center: noneACD? n
Queue? nNight Service Destination:
ISDN Caller Disp:
Figure 7-88. Hunt Group Screen
Only the new ISDN-PRI service application fields or those fields that require special or additional
considerations are mentioned here.
ISDN Caller
Specifies whether the hunt group name or the member name will...

ADMINISTRATION OPTIONS AND REQUIREMENTS — SYSTEM 75 R1V5 & GENERIC 17-165½
ExtName3:
4:
TERMINATING EXTENSION GROUPPage 1 of 1
Group Number:Group Extension:
—
Group Name:Coverage Path:
Security Code:COR: 1_
ISDN Caller Display:
GROUP MEMBER ASSIGNMENTS
ExtName1:
2:
Figure 7-89. Terminating Extension Group Screen
ISDN CallerSpecifies whether the hunt group name or the member name will be sent to the
Display
originating extension. Field encodes and their descriptions are:
l     grp-name — specifies that...

7-166ADMINISTRATION OPTIONS AND REQUIREMENTS — SYSTEM 75 R1V5 & GENERIC 1
Group Number: 1
Trunk Brd
1:1B152:1B163:1B174:
5:
6:
7:
8:
9:
10:
SIGNALING GROUPPage 1 of 1
Associated Signaling? nPrimary D-Channel: 1B1524
Secondary D-Channel: 1B1624
Interface ID
1
2
3Trunk Brd
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:Interface ID
Group
Number
Associated
Signaling
Primary D-
Channel
Secondary
D-Channel
Trunk BrdFigure 7-90. Signaling Group Screen½
½
½
½
½
½
½
½
½
A number that associates the D-channel pair used...

ADMINISTRATION OPTIONS AND REQUIREMENTS — SYSTEM 75 R1V5 & GENERIC 17-167
Interface ID½This field appears for NFAS only and specifies an ID that associates the D-channels
allowed to signal this trunk board from the D-channels available on any trunk board.½
½
For example, if a trunk board has a D-channel, then this board must be signaled by
only one D-channel pair (that is, one signaling group). Here, this trunk board can have
only one interface ID.½
½
½
But if a trunk board has no D-channel (all channels...

7-168ADMINISTRATION OPTIONS AND REQUIREMENTS — SYSTEM 75 R1V5 & GENERIC 1
ADDENDUM 1 (December 1990) to 555-025-101, Issue 4 

MAINTENANCE AND ALARMS8-7
Summary of Generic 1 Maintenance Capabilities½
Since Generic 1 implements the same DS1, DMI, and ISDN-PRI protocols as Generic 2, both switches
provide the same maintenance capabilities. Since Generic 1 DS1s provide comprehensive detection
capabilities, the switch usually detects errors caused by network facilities even though an alarm will not
trip.½
½
ALARMS
Unlike analog port circuit packs, a DS1 has two categories of alarm signals: circuit-pack-level and
facility. Service...

8-8MAINTENANCE AND ALARMS
Facility Alarms
There are several types of facility alarms that may arise. These are briefly described next.
Excessive Slips
Data received from a DS1 facility is stored (clocked) into buffers on the circuit pack using a clock
signal derived from the received signal. Data is read from the same buffers using a clock derived from
the master clock. If at any time these two clocks are not phase-locked, data will be stored into the
buffers at a rate different from the rate read from...

D. TRUNK TYPE AND SIGNALING TYPE COMPATIBILITY TABLES
This appendix contains three tables that define trunk type to signaling type compatibility for System 85,
R2V1 through R2V4, and Generic 2. Table D-1, Trunk/Signaling Cross-references, provides, on a
trunk-type basis, the default signaling type, the feature and direction compatibility, and the valid
signaling types. Table D-2, R2V4 Alternate Signaling Type Translations, provides, on a trunk-type
basis, a translation of other than the default, valid...

D-2TRUNK TYPE AND SIGNALING TYPE COMPATIBILITY TABLES
Direction½Defines if the trunk type is capable of:
l     Incoming and outgoing calls — 2-way
l     Incoming calls only — 1-way in
l     Outgoing calls only — 1-way out
Signaling½
The signaling types available with this trunk type. When there are several signaling
Types½types available with this trunk type, the default signaling type is listed first.
Procedure½
The procedure encode for the listed signaling type½
½
½
½
½
½
½
½
Encode½
NOTE: Default...