TEC certification is necessary for all new SIM that is to be connected to the public switched telephone network in India. TEC helps telecom service providers in India. Falls under Scheme : GCS, Group : C   TEC Certification for SIM Covers the following variants –   CSIM eSIM eUICC RUIM SIM UICC based ISIM USIM Complete support in TEC Certificate is given by Eikomp. Eikomp helps in documentation and procedures for obtaining a TEC Certificate.