council resolut june develop integr servic digit network isdn commun european wide telecommun infrastructur council european commun regard treati establish european econom commun council recommend eec call coordin introduct integr servic digit network isdn european commun council resolut call avail set european wide compat isdn offer implement context memorandum understand mou public telecommun network oper council direct eec june establish intern market telecommun servic implement open network provis call council adopt specif recommend isdn council recommend eec invit member state implement territori harmon access arrang minimum set offer signific impact develop isdn european council agre maastricht import tran european network includ field telecommun isdn plai import role advanc network commiss annual progress report coordin introduct isdn european commun establish statu implement isdn member state report propos focu effort coordin introduct isdn commun implement euro isdn recogn role avail coher set harmon isdn standard plai import prerequisit implement euro isdn signific progress european telecommun standard institut etsi made area effort undertaken public telecommun network oper framework memorandum understand isdn import develop isdn context tran european network consid measur final adopt euro isdn standard highest prioriti etsi take account subsequ adopt commun common technic regul area continu coordin introduct isdn commun focu effort rapid introduct euro isdn promot euro isdn world wide level invit public telecommun network oper develop harmon extent suitabl publish migrat plan exist isdn offer euro isdn take account technic commerci issu examin harmon respect introduct integr packet switch servic context isdn studi feasibl align nation isdn signal system contribut cooper interest parti identif cross border commun requir aris complet intern market specif role isdn plai area collabor countri network oper interconnect experi invit commiss public telecommun network oper proce consult user manufactur review progress implement euro isdn invit member state encourag rapid introduct euro isdn take account applic open network provis onp principl area invit commiss intensifi consult develop initi implement isdn take account gener framework tran european network continu promot identif user requir context european isdn user forum eiuf identifi promot applic isdn commun mean small medium size enterpris transnat applic context intern market promot european wide isdn termin market develop standard ensur interoper interchang analys possibl specif support introduct euro isdn favour region oj oj oj publish offici journal term euro isdn address isdn implement fulli base harmon european standard accord memorandum understand isdn