How do u change the passcode on my voicemail on my GoPhone cingular?

I have a cingular good go phone and trying to change the voicemail passcode and voice.How do u change the passcode on my voicemail on my GoPhone cingular?You can either call customer care at 611 from the phone or dial your voice mail (usually hold down on the 1 key) and then wait for more options --%26gt; personalization --%26gt; change password

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