ATTL7581BC и другие
| Компонент | Описание | Производитель | |
| ATTL7581BAE | Ringing Access Switch |
Agere Systems |
 |
| ATTL7581BAE | LH1263 E&M Signaling Circuit |
List of Unclassifed Manufacturers |
|
| ATTL7581BAE-TR | Ringing Access Switch |
Agere Systems |
|
| ATTL7581BC | Ringing Access Switch |
Agere Systems |
|
| ATTL7581BC | LH1263 E&M Signaling Circuit |
List of Unclassifed Manufacturers |
|