The new Scopia App 3.3.1 (73.2) has been released on iTunes. If you have already upgraded to iOS 7.1 please download this update to fix the 7.1 connection issues.
If you have not upgraded to iOS 7.1 you may also upgrade your Scopia app anyway in preparation for when you do upgrade your OS.
Official Radvision Notice:
RADVISION hereby Alerts its Scopia Mobile users about a compatibility problem with Apple iOS 7.1:
iOS 7.1 has been released by Apple on March 10th. An unexpected behavior change in one of its APIs causes Scopia Mobile application to crash upon meeting connection.