This encompasses the signalling functions in SS No.7 required to provide switched services and user facilities for voice and non-voice Applications in an ISDN source: ITU-Q.761/1100 domain: General acronyms: ISUP usage: EU-P308
The functional part of the Signaling System No. 7 (SS7) protocol, (i.e., the part that specifies the interexchange signaling procedures for the setup and tear down of trunk calls between networks).