Deactivate the voice of my own voicemail recording

Hello,

i use freepbx 2.11,

I activate the voice on an extension, then I dial * 97 and I record my message (I hear from my extension)

But how do another extension can between my message and not the original message?

thx,

Sorry, needs better English to be understandable

I activated the voice mail and I recorded my message, but if the extension does not not answer another extension hears my message, but the woman (default)