Don't have audio or video symbols on my Facetime I am a first-time user of Facetime.  My Facetime are activated but I can't make avideo or audio call.  The video or audio symbols are not available.  I goto Facetime setting and couln't sign in the account to view the account.  Message was"Unabe to contact the Facetime server".  

What's wrong ?

My connection to the web is OK, my wife's Ipad facetime is functioning OK.

I still can't call on Facetime.
This Knowledge Base article from apple should help you. I believe the following section from the article should resolve your issue. 


  Wi-Fi network issues
  
  
  If you encounter issues using a Wi-Fi network, use standard Wi-Fi network troubleshooting to resolve interference and other issues.
  If you are using router, firewall, or security software that restricts Internet access, verify that the ports documented in Using
  FaceTime behind a Firewall are open.
  FaceTime requires a broadband connection. Performance may vary according to network throughput and usage.
  


Read more of this Knowledge Base article - http://support.apple.com/ts3367