> a process that verifies that a mobile device complies with the technical specifications of a particular network operator. This certification is typically required before a device can be used on that network.
It also... Just isn't an actual answer. It's just a link to an unsourced Quora "answer" that seems to be a best guess, as well as a response that talks about the Indian process.
That is seemingly the only result for "IMEI certification" and is wholly unsourced and just seems to be a best guess based on the phrase. Is there an actual source, perhaps from the Indonesian authority that requires it that explains it? Because I certainly can't seem to find it.