ISO IEC 19058:2001 pdf download – Information technology — Telecommunications and information exchange between systems — Broadband Private Integrated Services Network — Inter-exchange signalling protocol — Generic functional protocol. 1 Scope This International Standard specifies the functional protocol for the support ofsupplementary services and additional basic call capabilities at the Q-reference point. The Q-reference point exists between Private Integrated services Network eXchanges (PINX) connected together within a Private Integrated Services Network (PISN) and is defined in ISO/IEC 11579-1. The generic functional protocol is part ofthe B-QSIG signalling system. The procedures specified in this International Standard can be used in association...