Lucent Technologies 8.2 User Manual
DEFINITY ECS Release 8.2
Administrator’s Guide
Administrator’s Guide
555-233-506
Issue 1
April 2000
Features and technical reference
1397
ISDN service
20
As an example of how ISDN is used in private- and public-network
configurations , see the following figures. For example, ISDN can be used to
connect a switch to a public-switched network, to other switches, and to
computers:
configurations , see the following figures. For example, ISDN can be used to
connect a switch to a public-switched network, to other switches, and to
computers:
AT&T Switched Network Protocol
DEFINITY ECS supports the AT&T Switched Network Protocol described in the
TR41449 (for 4ESS to common carrier) and TR41459 (for 5ESS to CO) ISDN
protocol standards as defined by AT&T. This protocol is used when the DS1
circuit pack is administered for Country Code 1, Protocol Version a. The AT&T
Switched Network provides you with the following services.
TR41449 (for 4ESS to common carrier) and TR41459 (for 5ESS to CO) ISDN
protocol standards as defined by AT&T. This protocol is used when the DS1
circuit pack is administered for Country Code 1, Protocol Version a. The AT&T
Switched Network provides you with the following services.
Access to AT&T Switched Network Services
ISDN provides access to AT&T Switched Network Services. The definition of the
Service Type field on the ISDN Trunk Group screen includes a table that outlines
these switched-network services. An ISDN trunk group may be dedicated to a
particular feature. Alternately, an ISDN call-by-call trunk group may provide
Service Type field on the ISDN Trunk Group screen includes a table that outlines
these switched-network services. An ISDN trunk group may be dedicated to a
particular feature. Alternately, an ISDN call-by-call trunk group may provide
Figure Notes
1. DEFINITY ECS
2. ISDN trunk
3. Public switched network
4. Host computer