Kal-Messages will require an account with KCI, but once acquired, they will be able to set up Kal-Messages. At the discretion of the customer, Kal-Messages can use the NIN, or a special KCI ID. The use of a KCI ID is to keep the privacy of the person that is using the system. If someone knows your NIN, they also know your free Ka-Tel email? address. They also have the first 11 digits of your telephone number, and they can get any additional contact information by using ID.ka. This might be too much information to make available to a potential stranger. With that said, the KCI ID can be the only option for connecting to someone else. Keep in mind that the KCI ID while requiring an NIN will not have anything to do with the NIN, and does not have to use that NIN as mentioned. Kal-Messages are only available on KCI devices. There is no other platforms supported by Kal-Messages.