ITU-T - Q.180
Interworking of Systems No. 4 and No. 5 - Specifications of Signalling Systems Nos. 4 and 5 (Study Group XI) 7 pp
inactive, Most Current
| Organization: | ITU-T |
| Publication Date: | 1 November 1988 |
| Status: | inactive |
| Page Count: | 7 |
Document History
Q.180
November 1, 1988
Interworking of Systems No. 4 and No. 5 - Specifications of Signalling Systems Nos. 4 and 5 (Study Group XI) 7 pp
A description is not available for this item.