| هذا العنوان غير متوفر باللغة العربية |
هذا الملخص غير متوفر باللغة العربية |
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| Citation: |
https://handle.itu.int/11.1002/1000/1167 |
| Series title: |
I series: Integrated services digital network
I.200-I.299: Service capabilities
I.250-I.259: Supplementary services in ISDN |
| Approval date: |
1992-08-04 |
| Approval process: | TAP |
|
Status: |
In force |
|
Maintenance responsibility: |
ITU-T Study Group 2 |
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Further details: |
Patent statement(s)
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|
|
|
|
|
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
|
|
