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D-2
TRUNK TYPE AND SIGNALING TYPE COMPATIBILITY TABLES
Direction
Default Signaling
EQU
A1 - A4
Description
Defines if the trunk type is capable of both:
●
●
●
Incoming and outgoing calls — 2-way
Incoming calls only — 1-way in
Outgoing calls only — 1-way out
The default SIG_TYPE value for the trunk type
COMPOOL EQU for default signaling type
Values in these columns (if any) are the COMPOOL EQUs for other valid
signaling types for this trunk type; at present, no trunk has more than five total
valid signaling types (see table D-4, Signaling Type Definitions, for definitions).
A description of this trunk type. A signaling type or trunk type value enclosed in
parenthesis such as (automatic in) is not valid on a universal module.
TABLE D-1. Trunk/Signaling Cross References
Trunk Type
EQU Feature Direction Default Signaling
EQU A1
A2
A3
A4
Description
incom
o
NA NA no_signal_required
0
intercom
dp_dr
1
NA
NA
no_signal_required 0 dial pulse digit
register
tt_dr
2 NA NA no_signal_required
0
touch-tone digit
register
at_dr 3
NA NA no_signal_required
0 attendant digit
register
sloop
4
NA NA no_signal_required
0 switched loop
6_way
(5)
NA NA no_signal_required
0 attendant conference
q_trk
6
NA NA no_signal_required
0 general purpose queuing
trunks
dtd_trk
7
NA NA no_signal_required 0
dial tone detector trk
ccsa2wd_d
12
APLT
2-way em_dd_in_wdd_out_w_dt
9
2 way ccsa delay dial
in/out
ccsa1wo_d
13
APLT
2-way
em_ws_in_wdd_out_w_dt
10 2 way ccsa delay dial
out/wink in
ccsa2w_d
14
APLT 2-way em_dd_in_is_out
8
2 way ccsa dial tone
out/delay dial in
ccsa2w
15
APLT 2-way em_ws_in_is_out
5
2 way ccsa dial tone
out/wink in
co1wi
16
CO
1 -way in
ground_start
1
28 29
19
20
1 way incoming
attendant completing
(automatic in)
co1wo
17
CO
1-way out ground_start
1
28
29
19
20
1 way outgoing dod
colwop
(18)
CO 1-way out ground_start_w_pt
(2)
1 way out dod with
party test
co_2w
19
CO
2-way ground_start
1
28
29 19 20
2 way attendant
completing in/dod