AT&T DEFINITY 7200 series User Manual

Page 257

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TRUNKING TERMS AND CAPABILITIES

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TRUNKING CHARACTERISTICS TABLE

D ——identifies the DEFAULT supervision option on the Generic 2 for the associated trunk group type and the
only option for R2V3 and earlier releases.

-## ——identifies a 1- or 2-digit number that corresponds to a particular

DIMENSION

PBX and/or System 85

signaling type. Beginning with System 85 R2V4, some trunk types may also be optioned (via administration
procedures) for signaling types other than the default.

Note: Where appropriate the default designator (D) and the signaling type designator (-##) are combined to identify
the default signaling type; for example, the table entry ‘‘D-1’’ means that the default signaling is ‘‘Ground Start.’’
The table entries apply to Generic 2 trunk connections. However, they may also be true for earlier versions of the
switch.

Signaling Types:

1 —Ground start

2 —Ground start with party test

3 —Loop/reverse battery, wink start

4 —E&M immed in/immed out

5 —E&M wink-start in/immed-start out

6 —ANI signaling

7 —Auxiliary equipment

8 —E&M delay-dial in/immed-start out

9 —E&M delay-dial in/wink or delay-dial with
dial-tone out

10 —E&M wink-start in/wink or delay-dial with
dial-tone out

11 —E&M wink-start in/wink or delay-dial out
(universal sequence)

12 —E&M immed in/wink or delay-dial out

13 —E&M release link trunk out

14 —E&M release link trunk in

15 —E&M main satellite immed start

16 —E&M main satellite wink start

17 —E&M main satellite delay-dial out

18 —S-channel signaling, host access GPP, host
access EIA

19 —Loop start

20 —DMI ISDN-MOS

21 —E&M wink-start in/wink-start out

22 —E&M delay-dial in/delay-dial out

23 —E&M delay-dial in/wink or delay-dial out

24 —E&M delay-dial in/wink or delay-dial out

25 —E&M immed-start in/wink or delay-dial
out with fail on timeout

26 —E&M wink-start in/wink or delay-dial out
with fail on timeout

27 —Analog line loop

28 —E&M automatic in/immed-start out

29 —E&M automatic in/wink-start out

30 —Loop/reverse battery, immed-start

31 —E&M immed-start in/automatic out

32 —E&M automatic in/automatic out

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