These are calls made between one radio user and another. In most instances all these calls would be within the same fleet.
Should calls be required to be made between fleets, additional interfleet and interprefix codes will have to be entered.
When the call is made, an indication of the availability of the called party is given i.e. busy, available or not available.
The length of the call will be limited to 90 seconds as set by the system manager. If you have not completed your message and the call clears, simply reinitiate the call and continue for another 90 seconds.