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.

  • Profile Image

    How can I add an Extension number to the existing phone field?

    Asked by designyourtie on April 16, 2015 at 09:52 AM

    I've built a B2B form for a client. The client has said we need to add an Ext. data field to the form? How do I do that?



    Page URL:

  • Profile Image

    Answered by Carina on April 16, 2015 at 12:29 PM

    There is no automatic way to include the extension, but we can use a workaround. 

    1. On properties require country code:

    2. Click the sublabels to change them into area code, phone number, extension:

    3. On the form designer> css > click on the fields to adjust the width:

    You can test and clone  the demo form: 


    Let us know if we can assist you further.