Besides, customers have also been requested to collect receipts of mobile phones.
BTRC made the request through a notice.
Customers intending to purchase a device can get the 15-digit IMEI number by dialing *#06# from the handset.
The legality of the handset can be checked by sending an SMS with the IMEI to 16002 (for example: KYD 123456789012345). A return SMS will inform the user whether the handset was imported legally.
Mobile phones with fake/clone IMEI will be detected through National Equipment Identity Register (NEIR) and disconnected from network, the BTRC said.
The telecom regulator has already built a database of International Mobile Equipment Identity (IMEI) number of mobile sets legally imported since January 2018.
Read Also: BTRC launches NAID to prevent illegal cellphone import