GSMArena
GSMArena.com - GSM phone reviews, news, opinions, votes, manuals and more...
PageRank:5 / 10
AlexaRank:293
人气指数:1399
收录时间:2014-11-013GPP
The production of Technical Specifications for a 3rd Generation Mobile System based on the evolved GSM core networks.
PageRank:7 / 10
AlexaRank:182812
人气指数:1518
收录时间:2014-10-31
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