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Why is my iPhone 4S breaking up SMS messages that are shorter than 160 characters?

20598 Views 39 Replies Latest reply: Nov 10, 2013 11:22 AM by jroku RSS
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andwest Calculating status...
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Mar 10, 2012 6:08 PM

With my iPhone 4S running 5.1, I'll tap out a message that reads on the character counter as less than 160 characters. When I press send, I hear the "sent message" swoosh sound happen twice, as it does when the phone splits a long message into multiple parts.


The recipient confirms that the message does get split into two parts even though its contents did not exceed 160 characters. Through some experimenting, I have determined that it happens with messages that exceed 120 characters. In cases of messages with lengths 120-160 characters, it cuts the last word off and sends it as a separate message. 


Why is this happening?



(In addition, checking my Google Voice history also confirms that the messages get split up even though they do not exceed the character limit.)

iPhone 4S, iOS 5.1, Sprint / iMessage disabled
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