The Relay Distribution function sends a fax to a relay machine, which distributes the received fax to a pre-registered group of destinations.
Overall communications costs can be reduced by grouping relay stations and destinations by area, compared to the case in which faxes are broadcast to all destinations. This function is useful when broadcasting faxes to distant locations.
Fax transmission to the relay station begins. Faxes received by a relay station are delivered to destinations registered with the relay station.