What is CBC (cell broadcast center)?

Most nations select the cell broadcast technology, when managing mobile Early Warning Systems. It is assisted over 2G, 3G, 4G and 5G networks in a similar manner. With a single Cell Broadcast Center serving all networks, the transmission service’s functionality does not change when roaming from one network to another.
It deals with the organization of all SMS-CB messages it gets from the CBEs, and does the communication towards the GSM network.