An apparatus of a communication network performs processing (10) for a group message to be sent to a plurality of devices. The group message includes an application layer content and a group identification identifying the plurality of devices. The apparatus performs communication (20) for sending the group message to the plurality of devices by using a protocol for enabling sending the group message in broadcast data to the plurality of devices. The protocol may enable sending the group message in multimedia broadcast/multicast service data or cell broadcast service data to the plurality of devices.