A method, device and system for indicating availability of services to a communication device is provided. The method comprises: receiving a service indication of availability of a communication service from a first communications network and a second communications network via a non-traffic channel of each of the first and the second communications networks; when the communication service is available to the communication device from both the second communications network and the first communications network, issuing a service information request to the second communications network over the non-traffic channel of the second communications network; and flashing an indicator on the communication device at a first rate when the communication device roams from a first geographic region into a second geographic region and the second geographic region provides a communication mode for the communication device that is not available to the communication device in the first geographic region.