AT&T 7400 series, 7500 series, 7100 series, 2500 series manual 26/WATS, 27/WATS OUT, 28/WATS-DOD OUT

C-22TRUNKING TERMS AND CAPABILITIES

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SWITCH A

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FOR EACH "SWITCH A" TRUNKING OPTION (LISTED BELOW) — REFER TO THE

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CORRESPONDING RECOMMENDED "SWITCH B" TRUNK OPTIONS (RIGHT FACING PAGE).

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⎜GROUP/CALL TYPE

⎜⎜DIREC- ⎜⎜

SUPERVISION

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SIGNALING

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TION

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GENERIC 2,

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INCOMING

OUTGOING

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GS

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⎜E&M

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⎜TIMEOUT

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SYSTEM 85, OR

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DIMENSION PBX

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"ALERTING"

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"ADDRESSING"

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(NOTE 3)

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26/WATS

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IN

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_D-1

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⎜ 19

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28

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AUTO

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29

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AUTO

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(NOTE 4)

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20

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DMI-MOS

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27/WATS

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OUT

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⎜⎜_D-1

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DIAL-TONE

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(DOD or

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⎜ 19

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TSPS Access)

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28

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IMMED-START

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29

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WINK-START

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(NOTE 12)

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20

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DMI-MOS

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28/WATS-DOD

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OUT

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⎜⎜D-2

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DIAL-TONE

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30/DID

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IN

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⎜ 30

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IMMED-START

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4

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IMMED-START

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20

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DMI-MOS

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31/DID

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IN

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⎜D-3

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WINK-START

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11

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WINK-START

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20

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DMI-MOS

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32/TIE

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IN

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⎜ D-4

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IMMED-START

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⎜⎜(DIAL-REPEATING) ⎜

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33/TIE

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OUT

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31

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IMMED-START

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(AUTOMATIC)

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⎜ 27

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ANALOG LINE

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34/TIE

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OUT

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⎜ D-4

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IMMED-START

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⎜(DIAL-REPEATING) ⎜

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⎜⎜ 1

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GRD START

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Notes:

12.This trunk type and optional signaling arrangement may be used to build a "Special Access" trunk group. This trunk group and signaling arrangement may function to provide trunking facilities for MEGACOM and SDN Services. Dependent upon trunk type selection at the 4 ESS toll switch, wither DTMF or MF signaling hardware must be equipped.