?
Solved

Whats the best way to validate a phone number is correct on a web form

Posted on 2014-12-15
9
Medium Priority
?
173 Views
Last Modified: 2014-12-16
Is there a good way to check a phone number is correct on a web form like a postcode lookup to find the address. We already check the digits but is there a better way?
0
Comment
Question by:grovenetsupport
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
  • 2
  • +1
9 Comments
 
LVL 34

Expert Comment

by:Paul MacDonald
ID: 40501004
Using some sort of RegEx would be the right way to go.  How you implement it depends on the technology you're using.
0
 
LVL 25

Expert Comment

by:Ron Malmstead
ID: 40501046
There are caveats to this..
You can check if a phone number has a valid area code and prefix.. but you can't be sure that it is a working number, or that the number hasn't been "ported" to a cellphone.  To do this you would need a database through NANPA.com

If you just want to check the area code.. you can get the list here nanpa
0
 
LVL 70

Expert Comment

by:Jason C. Levine
ID: 40501048
Are you asking to verify the format of the phone number or if the phone number itself is real and valid?
0
Moving data to the cloud? Find out if you’re ready

Before moving to the cloud, it is important to carefully define your db needs, plan for the migration & understand prod. environment. This wp explains how to define what you need from a cloud provider, plan for the migration & what putting a cloud solution into practice entails.

 

Author Comment

by:grovenetsupport
ID: 40501180
Both as we receive leads via a web form from joe public and they are forever putting wrong phone numbers in?
0
 

Author Comment

by:grovenetsupport
ID: 40501189
PS needs to be UK version
0
 
LVL 34

Accepted Solution

by:
Paul MacDonald earned 2000 total points
ID: 40501195
Again, without knowing any of the technology you're using, this should get you started.
0
 

Author Comment

by:grovenetsupport
ID: 40501232
Cms is umbraco if that helps?
0
 
LVL 70

Expert Comment

by:Jason C. Levine
ID: 40501444
Verifying the format of a phone number is pretty simple.  I'm sure Umbraco has a form handler that can validate different types of inputs and you can work with it from there.  To properly validate a phone number, you do need to use both client and server-side validations and regular expressions, so follow on with paulmacd's suggestions to get started.

Validating to see if the phone number is actually correct and rings an actual phone is a completely different animal.  Broadly speaking, there are two ways to go about it:

1) Use a database/API such as http://www.phone-validator.net/ and check the submitted number that way.  I have some doubts as to the accuracy of databases and APIs

2) Instead of checking the number, actually call the phone number entered by the user and have them enter a code that is read to them by a computer-generated voice.  This is broadly similar to two-factor authentication used to secure logins.  If you can get away with only demanding a mobile number, you can make this a lot easier by texting the code to the user instead of doing the audio call.
0

Featured Post

Why Off-Site Backups Are The Only Way To Go

You are probably backing up your data—but how and where? Ransomware is on the rise and there are variants that specifically target backups. Read on to discover why off-site is the way to go.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction In this tutorial, I'll explain how to create an animated progress meter in a wireframe prototype developed using Axure RP 7.0 - a leading prototyping tool for designing web sites and software. (For more information about Axure and gett…
It’s a strangely common occurrence that when you send someone their login details for a system, they can’t get in. This article will help you understand why it happens, and what you can do about it.
This video teaches viewers how to create their own website using cPanel and Wordpress. Tutorial walks users through how to set up their own domain name from tools like Domain Registrar, Hosting Account, and Wordpress. More specifically, the order in…
The purpose of this video is to demonstrate how to integrate Mailchimp with Facebook. This will be demonstrated using a Windows 8 PC. Mailchimp and Facebook will be used. Log into your Mailchimp account. : Click on your name. Go to Account Setti…

765 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question