The iPhone does not distinguish between the outgoing message sound and incoming message sound. It’s a little convoluted, but if you follow along, you can finally gain freedom from the annoyingly whimsical wooshing of Messages. The multi-step process required to turn off the outgoing message sound on your iPhone is detailed below. Sure, it’s utterly unreasonable to be so annoyed by something so small, but I am not the only one! If you, too, hate the outgoing message sound on your iPhone, you can disable it without jailbreaking or hacking your device in any way. There is one thing, however, that drives me up the wall: the “woosh” sound on sent text messages. The iPhone’s Messages app isn’t perfect, but it’s mostly inoffensive.