Combination communication device and medical device for communicating wirelessly with a remote medical device

A method of controlling a color display of an electronic device, the method comprising:

• determining a measured or computed value,
• determining a display color based on the measured or computed value relative to at least one limit or range, and
• changing a color of at least a portion of the display to the display color when displaying the measured or computed value or a message identifying the value.

A method for enabling a bolus advice feature of an electronic device according to which the electronic device recommends delivery of a bolus amount of a drug to a body of a user based on a plurality of factors including glucose concentration of the user, the method comprising:

• disabling the bolus advice feature of the electronic device during manufacture of the electronic device,
• monitoring one of a flag and a memory location when the electronic device is operable after manufacture thereof, and
• enabling the bolus advice feature if one of the flag is activated and the memory location includes a device pairing value.

A method of maintaining a time and date in an electronic device that communicates wirelessly with an ambulatory medical device, the method comprising:

• establishing via the electronic device a wireless communication link between the electronic device and the ambulatory medical device,
• wirelessly sending by the medical device time and date information, corresponding to a calendar date and time of day maintained by the medical device, when the wireless communication link is established, and
• modifying by the electronic device a calendar date and time of day thereof if the time of day received from the medical device time differs from the time of day of the electronic device by more than a predefined time value.