Q. 2 , Which traditional systems were replaced by the CDR based convergent billing and customer care system?
A) Commercial, TRA, FRS, and DQ
B) Commercial, TRA, GSM, and DQ
C) Commercial, TRA, Broadband, and DQ
D) Commercial, TRA, FRS, and EKYC
View answer✅Correct : - Answer: A) Commercial, TRA, FRS, and DQ