| In force components |
Number
|
Title |
Status |
Q.850 (10/18)
|
Usage of cause and location in the Digital Subscriber Signalling System No. 1 and the Signalling System No. 7 ISDN user part
|
In force
|
Q.850 (2018) Amendment 1 (04/19)
|
|
In force
|
|
| Superseded and Withdrawn components |
Number
|
Title |
Status |
Q.850 (03/93)
|
Use of cause and location in the digital subscriber Signalling System No. 1 and the Signalling System No. 7 ISDN user part
|
Superseded
|
Q.850 (05/98)
|
Usage of cause and location in the Digital Subscriber Signalling System No. 1 and the Signalling System No. 7 ISDN user part
|
Superseded
|
Q.850 Addendum 1 (06/00)
|
|
Superseded
|
Q.850 (1998) Amendment 1 (07/01)
|
|
Superseded
|
