Wake Up Calls Module for FreePBX-

I noticed that there is a basic Wake Up Calls that could be access with the function code *62

Yesterday I installed and activated Wake Up Calls Module for FreePBX (from Fonica).
It responds to *68

I don’t see any difference between answers from *62 and *68

Should it be something more with Wake Up Calls Module for FreePBX ?

I’m using FreePBX 2.6.0.RC2.1 on Elastix 1.5.2-2.3

Thanks for helping me to understand the situation.

Gaston