TEC CERTIFICATION FOR SIM ER NO - TEC40162111 The SIM card identity module is a chip that identifies a mobile device and its user and allows users to make calls, send texts, and access the Internet. To sell these products in the Indian market must obtain TEC Certification from Department of Telecommunications (DoT) under the Ministry of Communications Aleph India proudly offers consultancy services for SIM. If you are a OEM or AIR of SIM. Contact us today for expert guidance and quick certification. www.alephindia.in Link - https://shorturl.at/i7wKP