The calibration you mention should be the correct one. Hold it at full throttle long enough for the first set of beeps, but don't leave it so long that it enters programming mode.
From the manual:
1.Switch your Transmitter ON and set the throttle stick to its maximum position.
2.Connect the battery pack to the ESC. Wait for about 2 seconds, the motor will beep
for twice, then put the throttle in the minimum position, the motor will also beep, which
indicates that your ESC has got the signal range of the throttle from your transmitter.