| In force components |
Number
|
Title |
Status |
P.53 (10/94)
� |
Psophometer for use on telephone-type circuits
�
This Recommendation is published under alias number O.41
|
In force
|
�
� |
| Superseded and Withdrawn components |
Number
|
Title |
Status |
O.41/P.53 (11/88)
� |
Psophometer for use on telephone-type circuits
�
This Recommendation is also included but not published in P series under alias number P.53
|
Superseded
|
O.41/P.53 (03/93)
� |
Psophometer for use on telephone-type circuits
�
This Recommendation is also included but not published in P series under alias number P.53
|
Superseded
|
