I have a client who would like to restrict International Calls for all users, but allow authorized users to call internationally from ANY phone. On some systems this is accomplished with a Forced, Validated account code; the user dials the restricted number and is prompted (i.e. Forced) to enter a code which is then Validated against a list of acceptable account codes. If the user's code is found the call is placed, if it isn't found the call is denied and either reorder tones (fast busy) or a message of some type is played to the user (e.g., "calls to international numbers are not authorized for this user").
Is there an EASY way to configure something similar on Kazoo?