Basic operation principle:
To you first in China to use our callback system as an example, suppose you want to dial the number 001-626-570-4511 from China, callback system is started, so
First of all, we'll give you a DID the booking number, you use the phone call the reservation number, will hear a loud ringing out, and then immediately hang up your phone, you don't have to pay the fee, because the phone not connected), a few seconds, your phone rang again, this is what we call your callback system, when you once again picking up the receiver is connected with a callback system, the system will give you a voice prompt, and then according to the voice prompt you got what you really want to play around the world number, if the number in the United States, such as 001-626-570-4511, you can stay in home in the United States, as well as the domestic long distance call to save costs,

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