magicJack VocalTec ( CALL) is a provider of carrier-class voice over Internet protocol (VoIP) and convergence solutions for fixed and wireless communication service providers. The stock is trading up 6.6% at $12.77 in recent trading. Today's Volume: 234,000 Average Volume: 68,255 Volume % Change: 346% From a technical standpoint, CALL is bouncing big off of its 50-day moving average of $11.63 on big volume. Traders should now watch for a sustained move and close either near or above today's high of $13.23. If we close near today's highs, then look for CALL to break out above some near-term overhead resistance at $13.60 to $13.68. A high-volume move and close over those levels should set this stock up to trend back toward its next significant overhead resistance levels at $16.95 in the near future.