I tried to sign up for a ringcentral.com account today but either I am dyslexic and still can't see the mismatch or their challenge-response system is broken. I did call the number and spoke with a gentleman (from his accent I assume he is in a foreign call center - but I only assume that) who offered to sign me up but didn't seem concerned that there may be a problem with the web site. I didn't pursue it further and I didn't sign up. If their web sign up system is broken I'm not sure I can trust the web-based tools they provide to manage account features.
I had TimeSnapper running at the time so I went back and looked at my attempts. These are screen clips from three different attempts to submit the form:
This is the dialog I got each time:
This was disappointing because it looks like they have a decent service. I may try again later. Maybe I am wasting time clipping screen shots and writing about this but I think this is something businesses need to be careful of. A poor challenge-response system kills confidence. I think the worst part is that this happens at a point where the customer has already decided to buy. Do you really want your web site to change their mind?