Send notification from form submissions via SMS

Im a web developer how can i customize so each of my clients can receive notifications to there phones

There are 2 ways that you can do to meet your requirements.

1.) It would be possible if your mobile network provider allows it. Simply find your SMS email gateway on the following list: http://en.wikipedia.org/wiki/List_of_SMS_gateways

Then, construct your email address using the following format. You can also find that on the link provided above.

number@serviceProvider.com

You would need to replace the number with your mobile number. Here's an example for T-mobile.

Format: 10-digit cell phone number @t-mobile.net 

Here's an example: 2221234567@t-mobile.net

After this, simply set this email as your form notification email recipient.

Reference Guide: Finding-out-E-mail-Address-used-for-submission-notifications

2.) Through Webhook but this requires API from your SMS Provider and a custom PHP script that would send the message after submission.

You can find an example SMS Notification for Webhook in this guide: Webhook-PHP-Script-Examples (See example #2).