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Information technology. Telecommunications and information exchange between systems. Use of OSI applications over the internet transmission control protocol (TCP). Original standard BS ISO IEC 14766-1997 (1999) 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 BS ISO IEC 15049-1997 (2000) 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 BS ISO IEC 15050-1997 (2000) 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 - Call interception additional network feature. Original standard BS ISO IEC 15054-1997 (1999) 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 - Transit counter additional network feature. Original standard BS ISO IEC 15055-1997 (1999) 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 - Transit counter additional network feature. Original standard BS ISO IEC 15056-1997 (1999) in PDF full version. Additional info + preview on request
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