december 1 3 itu bdt economical evaluation ogs lecture np 2 slide workshop ljubljana slovenia 2003 imt 2000 of 2g to 3g migration and tool based case study oscar gonzález soto consultant expert strategic planning assessment for content factors in the evolution key issues steps architectures techno business modeling demand services revenues network resources sharing stem summary demo results dominant dimensioning criteria evolving phases geo coverage due propagation capacity at first phase ports users as customers grow a second traffic increase applications latest high cost impact infrastructure significant savings by equipment profitability function new take up rate ownership on what if analysis