Similar to Apple’s iMessage, Kal-Messages is a closed loop messaging platform. However, instead of using either a telephone number, or email address – anyone wishing to enable Kal-Messages must have an NIN from the Kaldan government. Once done, the user can setup a KCI-ID account, and use their NIN as the K-Messages ID number. This will allow someone to provide their NIN without providing their telephone number. While it might be relatively easy to guess a telephone number with the NIN, the ID will still be used. Anyone not living in Kaldus will not have a telephone number that would use the same digits as the NIN.
If the person that you wish to message to doesn’t have a KCI-ID, and a supporting device, then the only other option will be to use the person’s telephone number, and either use RCS, or SMS to communicate. Kal-Messages are always blue. RCS is red, and SMS is green. This distinction might be important if one of the parties have to pay for international SMS messages. In that case, they will need to use Kal-Messages, or RCS. The colors will show distinction of what kind of message it is without needing multiple applications.