Abstract: The invention relates to a method of allocating communication resources to terminals in an MF-TDMA telecommunication system in which digital data is transmitted in selected time intervals on each of a plurality of carriers. The resources for each terminal are allocated to frames grouped into superframes. The pattern of resources (time intervals and carriers) allocated to the terminal for the transmission of real-time data in each frame of a given rank in a superframe remains the same throughout the various superframes of the call relating to the real time data. Accordingly, the transmission of real time data is virtually free of jitter.