Broadcast Me allows you to broadcast live video and audio from your iPhone, iPod Touch or iPad 2 to a server which supports RTMP publishing of H.264/AAC stream. It is a perfect application for streaming to Wowza Media Server.
You just need to enter a valid RTMP link and then check the media server. (A link should look similar to this: rtmp://55.55.555.55/appname/test)
For more information please visit the support site.