A method for establishing a communication channel at a higher frequency between devices of a glucose monitoring system than a normal frequency of establishing the communication channel so that reference glucose measurement information can be more quickly exchanged, the method comprising: periodically establishing a communication channel between a sensor electronics module operatively connected to a continuous glucose sensor and display device (14, 16, 18, 20), the communication channel being periodically established at predetermined intervals that occur at a first frequency, and the communication channel being for communication between the sensor electronics module and the display device; determining that reference glucose measurement information is needed at the sensor electronics module; transmitting, using the sensor electronics module, a request to the display device for reference glucose measurement information over a said established communication channel; in response to the request, periodically establishing the communication channel between the sensor electronics module and the display device at a second frequency that is higher than the first frequency; prompting, using the display device, a user for reference glucose measurement information; transmitting, using the display device, the requested reference glucose measurement information to the sensor electronics module; calibrating, using the sensor electronics module, glucose sensor data based on the reference glucose measurement information; and transmitting, using the sensor electronics module, the calibrated glucose sensor data to the display device, wherein establishing the communication channel at the second frequency is maintained until a pre-determined condition is satisfied. periodically establishing a communication channel between a sensor electronics module operatively connected to a continuous glucose sensor and display device (14, 16, 18, 20), the communication channel being periodically established at predetermined intervals that occur at a first frequency, and the communication channel being for communication between the sensor electronics module and the display device; determining that reference glucose measurement information is needed at the sensor electronics module; transmitting, using the sensor electronics module, a request to the display device for reference glucose measurement information over a said established communication channel; in response to the request, periodically establishing the communication channel between the sensor electronics module and the display device at a second frequency that is higher than the first frequency; prompting, using the display device, a user for reference glucose measurement information; transmitting, using the display device, the requested reference glucose measurement information to the sensor electronics module; calibrating, using the sensor electronics module, glucose sensor data based on the reference glucose measurement information; and transmitting, using the sensor electronics module, the calibrated glucose sensor data to the display device, wherein establishing the communication channel at the second frequency is maintained until a pre-determined condition is satisfied.