JimLur, in this article, DoCoMo describes the importance of GCF certification as:
“GCF certification is widely accepted as a guarantee of the quality and compatibility”
Article excerpts:
GCF is a partnership between network operators and terminal manufacturers to ensure global interoperability of 2G (GSM) and 3G (W-CDMA) wireless terminals. DoCoMo has been a member of GCF since October 2002.
Field Trial Qualified Operators open their commercial networks to terminal manufacturers to enable them to test the operability of their handsets. GCF has become the leading international forum for 2G/3G testing and certification. GCF certification is widely accepted as a guarantee of the quality and compatibility of GSM-based 2G handsets, and the certification is expected to become increasingly important for W-CDMA 3G handsets as well.