Some international calls would not show any numbers, sometimes it would show some other number. Sometimes its really hard to reach phone numbers in philippines that you get delayed rings, voice feedbacks etc. Sometimes it would be coming from local calls or landline calls.. I do get calls like that too.
My theory is... Maybe you placed your phone number or posted a resume online.. like a job site or the like.. maybe a potential recruiter is trying to reach you.
The strange thing is you cant hear the caller.. maybe you should have your phone number/line check. Like my fathers phone, he cant be reached thru calls, he does not have any active barring, but he can call and text.. we had the number checked by the provided and it took a while to fix the matter..
Please have it checked maybe thats the fix.. who knows those calls are important..
