How to Change the SMS on an iPhone

You can use the Apple iPhone to send e-mail, instant messages, and text messages (also referred to as SMS messages). There may be circumstances when you need to change the SMS sending number, such as if you change the iPhone to a new mobile carrier. To send text messages over your mobile provider's network, the SMS number must be specific to your mobile provider. You can easily change your SMS number when it is incorrect.

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Check the SMS Number

Step

Press the “Home” button on the iPhone. This will take you back to the home icon screen. If you are already on the home icon screen, skip to the next step.

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Scroll to the “Dial” application icon. Click the icon to place a call.

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Enter the following string of numbers and characters: _#5005_7672# in the number field. Be sure to enter all of the characters.

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Click the option for “Send”.

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Verify that your current SMS number appears. This number will resemble a standard phone number.

Change the SMS Number

Step

Contact your mobile provider to obtain your specific SMS number. You can get the number from your provider’s website or through the customer service department.

Step

Press the “Home” button on the iPhone. This action will return the phone to the home icon screen.

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Scroll to the “Dial” application icon. Click the icon to place a call.

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Enter the following string of numbers and characters: _5005_7672+yourcompanysnumber# in the number field. You must enter every character. Replace the text “yourcompanysnumber” with the actual number for your mobile provider. .

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Press the “Send” option to place the call. Your new number will display. Send a test SMS message to confirm that the setting worked properly.