What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
This is possible but before the message can be sent, you must determine the domain of the mobile carrier's SMS gateway so in your case you have to know which provider your customer is using.
A sample to that would be AT&T Enterprise Paging email@example.com - firstname.lastname@example.org
You can view some list of Emails to SMS gateways and there format here: http://martinfitzpatrick.name/list-of-email-to-sms-gateways
You can also try this recently released integration created by one of Jotform's fan, check this out for more details. http://www.jotform.com/blog/94-jotText-Get-Your-Forms-to-Text-