Sorry, the page at https://knowledge.spok.com/Spok_Products/Spok_Mobile/Spok_Mobile_4.7/Implementing_Spok_Mobile_4.7/Upgrading_Spok_Mobile_Services/Pre-Upgrade_Step%3A_Upgrading_Hosted_Registrations_to_Local_Registrations_(3.5_and_Older) could not be found.