Globalization, Localizaton has any one wrapped there heads around this concept??

I've been at it for about 2 weeks. I got the idea that when a number comes in you globalize it to a E.164 number then localize it so a user will understand it, and you create transformation patterns in a separate CSS, but is there more to it. I'm still like its something I"m missing about it???
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CUCM SRND 9x/10, UCCX SRND 10x, QOS SRND, SIP Trunking Guide, anything contact center related
CUCM SRND 9x/10, UCCX SRND 10x, QOS SRND, SIP Trunking Guide, anything contact center related
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CUCM SRND 9x/10, UCCX SRND 10x, QOS SRND, SIP Trunking Guide, anything contact center related