A CMOS image sensor and a method for fabricating the same can ensure isolation characteristics using a shallow trench isolation process and a selective epitaxy method. The detection region setting unit sets a first detection region as the target detection region if no road lane boundary is detected, and sets a second detection region as the target detection region if the road lane boundary is detected, such that the first and second detection regions are different in size from each other. In accordance with a determination that the respective electronic message is not associated with the voicemail tag, the server system sends the respective electronic message without the audio player object when the respective electronic message is delivered to a client. A secondary alert is output to the user of the mobile telephone that is different than a default alert. The first pixel group is electrically connected to a first gate line adjacent to the pixel column.