primary rate
| B-channel interface structure
| primary rate | |
| commun. IT | primär bitrat |
| B-channel interface structure | |
| gen. | gränssnittsstruktur i ISDN för B-kanal |
| |||
| primär bitrat | |||
|
primary rate : 4 phrases in 2 subjects |
| Communications | 3 |
| General | 1 |