It's a shame there are no negative reviews. If it existed, this company would receive the most negative stars award. Contracts with all terms 100% in favor of RingCentral and equally unfavorable for customers. Customer Support would likely be as poor as anything you've ever experienced, if it existed at all I've just spent a freaking hour trying to deal with these people over a problem with our messaging and then finally find out I need an EIN to complete the process. In the hour I've been on hold and passed around to a handful of "departments" with these idiots, my accounting office with access to the information closed. Another shining example of RC's disastrous customer treatment!!!!!!!