STM PDF
Information technology - Home Electronic System (HES) gateway - Part 4-2- Structure - Simple gateway. Original standard ISO IEC 15045-4-2-2024 in PDF full version. Additional info + preview on request
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Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Advice of charge supplementary services. Original standard ISO IEC 15049-1997 in PDF full version. Additional info + preview on request
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Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Advice Of Charge supplementary services. Original standard ISO IEC 15050-2003 in PDF full version. Additional info + preview on request
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Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Recall supplementary service. Original standard ISO IEC 15051-2003 in PDF full version. Additional info + preview on request
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Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Recall supplementary service. Original standard ISO IEC 15052-2003 in PDF full version. Additional info + preview on request
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Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Call Interception additional network feature. Original standard ISO IEC 15053-2003 in PDF full version. Additional info + preview on request
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