iOS does not allow you to directly send text messages using shortcodes. However, there are a few workarounds that you can use.
One workaround is to use an SMS app that supports shortcodes, such as TextPlus or WhatsApp.
Another workaround is to send a text message to the short code’s phone number, and then reply to the automated message that is sent back in order to opt-in to the service.
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How do I activate short code SMS?
There are a few different ways to activate short code SMS, depending on your carrier and device.
On most carriers, you will need to enable short code messaging in your phone’s settings. This can usually be found under the Messages or Advanced Messages settings.
Once you have enabled shortcode messaging, you should be able to receive messages from most shortcodes.
If you are still having trouble receiving messages from a particular short code, you may need to contact your carrier for further assistance.
They may need to enable short code messaging on their end or whitelist the specific short code that you’re trying to use.
Source: https://www.textanywhere.com/resources/how-to-guides/how-to-set-up-short-codes-with-textpremium/
Why can’t I get SMS codes on my iPhone?
There are a few reasons why you might not be able to get SMS codes on your iPhone. One reason could be that you haven’t enabled it in your settings.
To do so, open the Settings app and tap ‘Messages’. Scroll down and toggle the ‘SMS Codes’ slider to the green ‘on’ position.
Another possibility is that your carrier doesn’t support SMS codes. If this is the case, you can ask them to enable it for you.
Finally, if you’ve tried all of the above and are still having trouble getting SMS codes on your iPhone, there may be a problem with your device or with your account.
In this case, we recommend contacting Apple Support or your carrier for help.
Source: https://thegadgetbuyer.com/my-iphone-doesnt-receive-verification-texts-solution/
How do I enable SMS on my iPhone?
You can enable SMS on your iPhone by following these instructions:
- Go to Settings and select Messages.
- Toggle ON the button for Text Message Forwarding.
- Enter the phone number of the device you want to forward text messages to and hit Save.
- Confirm that you want to allow texts from this other number by tapping Allow Once.
- If you ever want to stop receiving SMS texts on your iPhone, go back into Messages and toggle OFF Text Message Forwarding.
How do I unblock short code SMS?
There are a few different ways that you can unblock short code SMS on your phone. One way is to contact your carrier and ask them to unblock the shortcode for you.
Another way is to use a third-party service like SMS Unblocker. Finally, you can also try resetting your device’s network settings.
If none of these methods work, then it’s possible that your phone is not compatible with short-code SMS.