https://legacy.forums.gravityhelp.com/topic/blocking-premium-rate-phone-numbers Gravity Support Forums Topic: Blocking Premium Rate Phone NUmbers en-US Mon, 20 Apr 2026 12:03:03 +0000 http://bbpress.org/?v=1.0.1 q https://legacy.forums.gravityhelp.com/search.php https://legacy.forums.gravityhelp.com/topic/blocking-premium-rate-phone-numbers#post-29644 Mon, 11 Jul 2011 12:48:43 +0000 gomy 29644@https://legacy.forums.gravityhelp.com/ <p>Thanks very much for the answer Carl.</p> <p>Our main developer is back tomorrow, so I will let him have a proper read of the tutorial.</p> <p>Thanks again for your help. </p> https://legacy.forums.gravityhelp.com/topic/blocking-premium-rate-phone-numbers#post-29640 Mon, 11 Jul 2011 12:40:44 +0000 Carl Hancock 29640@https://legacy.forums.gravityhelp.com/ <p>This isn't a built in feature but there is no reason why you couldn't do this as a customization using the gform_validation hook. You could write custom validation to validate the phone number was entered. You would have to be familiar with REGEX to create the necessary validation.</p> <p>Here is a tutorial on using the gform_validation hook:</p> <p><a href="http://www.gravityhelp.com/documentation/page/Using_the_Gravity_Forms_%22gform_valiation%22_Hook" rel="nofollow">http://www.gravityhelp.com/documentation/page/Using_the_Gravity_Forms_%22gform_valiation%22_Hook</a></p> <p>If this is above your skill set it probably wouldn't take very long for an experienced developer to implement something like this for you if you wanted to hire someone to do it. </p> https://legacy.forums.gravityhelp.com/topic/blocking-premium-rate-phone-numbers#post-29605 Mon, 11 Jul 2011 09:29:49 +0000 gomy 29605@https://legacy.forums.gravityhelp.com/ <p>I have been asked by a client if we can block certain phone numbers (Area codes).</p> <p>The problems they are having are from people leaving a number to callback - But the person leaving the number is giving a premium rate number.</p> <p>It's quite difficult to spot them all as there are many variations of premium rate numbers (in the UK).</p> <p>Can anybody help please?</p> <p>Thanks, Dylan </p>