|
|
| Citation: |
https://handle.itu.int/11.1002/1000/5436 |
| Series title: |
I series: Integrated services digital network
I.400-I.499: ISDN user-network interfaces
I.410-I.429: Application of I-series Recommendations to ISDN user-network interfaces |
| Approval date: |
1984-10-19 |
| Approval process: | WTSA |
|
Status: |
Superseded |
|
Maintenance responsibility: |
ITU-T Study Group 13 |
|
Further details: |
Patent statement(s)
|
|
|
|
|
|
ITU-T Supplement
|
Title
|
Status
|
Summary
|
Table of contents
|
Download
|
|
I Suppl. 1 (03/1998)
|
Generic service descriptions for ten supplementary services defined in I.250-Series Recommendations
|
In force
|
-
|
here
|
here
|
| Title |
Approved on |
Download |
|
ISDN field trial guidelines
|
1991
|
here
|
|
