IPhone 4S won't send long texts

If I break down the message it will send but for some reason it's just started refusing to send long texts. What's wrong with it? I tried resetting my network settings and its not working. It's driving me nuts!

May t could be the persons phone that you are sending the messages to? I know some phone, like a basics feature phone can only send a receive messages that are 160 character long. As while iPhone can practically send and receive a large text. Try sending a long text to some one you know had an iPhone or android phone and see if it works.

A long message is sometimes sent as a MMS.
Make sure that MMS's are enabled on your network plan and on your iphone [settings --> messages --> scroll down --> MMS messaging --> ON]
If it is ON I would phone your network provider and make sure MMS is on your plan. If this fails just speak to them again and they should explain how to fix the problem!
Hope this helps

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