A computer-implemented method comprising: detecting a message that is designated for delivery to a mobile device; determining a location characteristic, wherein determining the location characteristic includes determining whether the mobile device and the coordinating device are connected to a same network, and wherein a proximate condition is satisfied when the mobile device and the coordinating device are connected to the same network; and in response to detecting the message at a coordinating device: in accordance with a determination that the proximate condition is satisfied and in accordance with a determination that the coordinating device is in the active mode: suppressing presentation of an alert corresponding to the message at the mobile device, wherein suppressing presentation of the alert corresponding to the message includes transmitting an instruction not to present audio and/or haptic stimulus in response to the message to the mobile device; and presenting an alert at the coordinating device; in accordance with a determination that the coordinating device is not in the active mode and the mobile device will not present an alert corresponding to the message, presenting an alert corresponding to the message at the coordinating device; and in accordance with a determination that the coordinating device is not in the active mode and the mobile device will present an alert corresponding to the message, forgoing presentation of an alert corresponding to the message at the coordinating device. detecting a message that is designated for delivery to a mobile device; determining a location characteristic, wherein determining the location characteristic includes determining whether the mobile device and the coordinating device are connected to a same network, and wherein a proximate condition is satisfied when the mobile device and the coordinating device are connected to the same network; and in response to detecting the message at a coordinating device: in accordance with a determination that the proximate condition is satisfied and in accordance with a determination that the coordinating device is in the active mode: suppressing presentation of an alert corresponding to the message at the mobile device, wherein suppressing presentation of the alert corresponding to the message includes transmitting an instruction not to present audio and/or haptic stimulus in response to the message to the mobile device; and presenting an alert at the coordinating device; in accordance with a determination that the coordinating device is not in the active mode and the mobile device will not present an alert corresponding to the message, presenting an alert corresponding to the message at the coordinating device; and in accordance with a determination that the coordinating device is not in the active mode and the mobile device will present an alert corresponding to the message, forgoing presentation of an alert corresponding to the message at the coordinating device. suppressing presentation of an alert corresponding to the message at the mobile device, wherein suppressing presentation of the alert corresponding to the message includes transmitting an instruction not to present audio and/or haptic stimulus in response to the message to the mobile device; and presenting an alert at the coordinating device; in accordance with a determination that the coordinating device is not in the active mode and the mobile device will not present an alert corresponding to the message, presenting an alert corresponding to the message at the coordinating device; and in accordance with a determination that the coordinating device is not in the active mode and the mobile device will present an alert corresponding to the message, forgoing presentation of an alert corresponding to the message at the coordinating device.