The function of the return call allows you to quickly and comfortably connect to the person, who has called you as the last. Simply dial *69 (USA) in order to find out the number and the call time, after that press the “1” key to make the call. In case the number is busy, the system will try to reach the line during 30 minutes and when the person will be available, you will receive a signal and be connected.
Houyuan Technology (HK) Limited
Houyuan Technology (HK) Limited ( http://www.houyuanhk.com ) is a professional voip manufacturer in China.
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