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.
There is an option for the Phone Number field to add a "Country code".
You can change the sub-labels of the fields to your preference so you will not confuse your respondents.
Here's how you can add it.
Here's how you can change the sub-labels.
Double-click the sub-label to highlight so you can change it.
Or, you can just remove the sub-labels and add a placeholder/hint.
I hope this helps. If you need any further assistance, please feel free to contact us again anytime. Thank you.