Finally all of my accounts has been verified by E164.org. The first account took several days since while the second account only needs 1 day. It was quite difficult to listen to the voice, especially when you are not in a quiet environment, so i failed several times at the beginning. I had my number deleted since i failed to enter the PIN 3 times and i had to re-adding my number again and finally it worked. Yesterday, i registered another number and today, i got a phone call and i made it on my first try
Next thing is testing it whether a call to my cell phone number i registered to E164 will be forwarded to my VoIP Rakyat account.