MOBILE NUMBER PORTABILITY All non-BSNL Mobile Customers (GSM/CDMA) Welcome to BSNL Switch Over to BSNL retaining your mobile number   CDMA Services Request  FTTH Services Request Calcutta Telephones is offering High Speed Broadband Internet service (up to 100 Mbps) using Fibre To The Home (FTTH) concept in the last mile.   MATCHLESS OFFERS