AT&T DS1/DMi/ISDN-PRI manual 2TRUNK Type and Signaling Type Compatibility Tables, Aplt

D-2TRUNK TYPE AND SIGNALING TYPE COMPATIBILITY TABLES

Direction

Default Signaling

E Q U

A1 - A4

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).

Description			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