Can we use Voki for Training staff (and train the trainer type courses)

Yes you may, if it fits your needs. 

For training purposes we often find that our SitePal product is a better fit.

If you are looking to integrate the speaking character into your web based (non-video) content or application - SitePal offers a rich API which enables that.

If you are looking to integrate the speaking character into video tutorials, SitePal supports exporting Scenes as videos (requires special license)

If you are interested, or want to learn more send a note to sales@oddcast.com & we'll be happy to advise, or, just sign up for a free trial at - www.sitepal.com

Regards

Gil