When cell phone numbers go public, they bring two implications to the subscribers including the fact that their lines will be open to anyone who wants to call them. Secondly, they also gain the right under the existing laws in the country of origin to prevent their lines from being activated by others. The latter move becomes necessary when the callers mainly come from marketers who are usually assumed to act in bad faith in calling the listed lines at any time. Additionally, this may lead to the one being called to incur the service charge instead of the other way round.

On the first option pertaining to the availability of all subscribers’ lines in a single directory, this can be effective in the sense that one can track any of their lost pals though this means. This repository is a listing of all the personal details of customers of given networks whose data is made public just like the case with the telephone directories. Unlike before, the whereabouts and present career of the owner of the phone can be traced by merely following their listed information.
The other option pertaining to receiving unwanted calls when cell phone numbers go public is, on the other hand, seen to have its pitfalls. For example, the recipient will necessarily be compelled to answer any message from marketers especially those who transact with them. This is legal in the sense that, just like in the traditional methods, the caller does not have to consult the recipient first but will automatically contact them if they wish. They only have to refer to the given line and put across the given message that they want their customer to receive.
The above option that comes in the wake of when cell phone numbers go public is different in its scope of service in the sense that the recipient will be forced to pay for the call. However, it is recommended that such a person can deactivate their lines as listed in the repository so that they screen any unwanted contacts. Thus they can continue to make contact with their friends as they have traditionally been doing but won’t receive from other sources. This blocking is effective because it removes any cost implications that comes with unscrupulous contacts from other sources.
After cell phone numbers go public, the subscribers whose lines are listed automatically by their various networks can be said to be both advertised as well as exposed. They are advertised in the sense that they can be traced by those who want to link up with them after they may have changed their addresses or migrated between networks without notification. They are exposed only when they are charged for any unwarranted call that is placed through to them from any business form that uses communication devices to promote its products and services.
In a nut shell, when cell phone numbers go public, the subscribers will have a number of options of either staying put or blocking their lines from being reached.