NTC XI director Josue Go issued the warning in a recent media briefing saying the unit has to pass three tests namely on radiation, electrical circuit and signal.
The NTC has intensified their campaign against illegal selling of cellphone and it is in Davao City where they made the first crackdown last January 4, 2008 with officials from the Intellectual Property Rights Office from Manila.
Out of their raid in several stores they were able to confiscate 834 units in Davao City, 120 in Tagum City, 109 in Panabo, 42 units in Mati, 50 in Digos, 3 in Nabunturan, 3 and 12 in Compostela and the crackdown is ongoing.
Buyers are advised not to patronize smuggled units and to always check on the unit's International Mobile Equipment Identification (IMEI). The IMEI will determine that the unit has passed the international processes.
Stores selling smuggled phones once caught will have their license automatically revoked and their stores padlocked.