Publications

ND1301-1399
Private Network Signalling Specifications

ND Number Version Title
ND1301 Issue 7 Digital Private Signalling System No.1 Download
ND1302 Issue 4 Interworking Between DPNSS1 and Other Signalling Systems Download
ND1303 Issue 2 Interworking Between DPNSS1 and ISDN Signalling Systems Download