*22899 was originally for PDA's as it provisioned extra features on the phone, but it can be used on any of the phones, ever since they changed the *228 pacing (you can't interrupt the lady any more) I have been using *22899 because it programs the phones faster. I'm not sure about the other codes, but I have been told by a couple of techs that you shouldn't use any of the *228 options besides *22899 and *228 because it creates problems in the switch.
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