I am bit confused between Skype & Outlook.com - People Sync Services..

What time frequency to sync Skype contact with Outlook.com - People ?

Can't we have manual button which we can press & sync Instantly or Manually instead of just waiting for them to sync on periodically ? Because sometime after changing the name in skype, we need to constant monitor at Outlook.com - People, Is that updated or not.

Instead if we just that feature available, We can change the profile in skype (Name/ Contact/ or etc..) and press Sync in Outlook.com - People 

That might applicable to Google Contact Or any other contact whose sync service is available through Outlook.com - People.

Because we don't know the exert time frequency by which that service runs on back-end & sync.