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ND1301-1399
Private Network Signalling Specifications

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