I need to do this as well on a Vista 15P. Can anyone provide some more detailed instructions. I realize *43 - 46 is where the Alarm Co. #'s are stored, not sure exactly how to clear them.
Also, how would a *96 work, looks to me like that downloads info from the provider?
Will clearing out the *43- 46 alone keep the FC from flashing/
Thanks for any help!
First post here

IMO if u don't need to report to a central station what u can do is delete these fields
40(not exactly necessary),41,42,43,45,46
these fields are ur PABX code,reciever nos. & Account no.s
In order to delete them do * + 40 + * and so on