identifying a coverage gap in a wireless coverage area;

notifying system users of the existence of a coverage gap;

requesting a callee from among the system users to hold during the coverage gap;

offering the callee access to a voicemail of a caller from among the system users when the callee is unwilling to hold during the coverage gap; and

reconnecting parties upon exiting the coverage gap;

wherein the step of identifying a coverage gap includes:

observing, by an infrastructure of a communication system to which the caller is subscribed, patterns of movement over time by the caller; and

making predictions, by the infrastructure, of a route of travel of a current trip by the caller based on file observed patterns of movement over time;

wherein the step of identifying a coverage gap further includes:

recording a time and a base station from which a cell phone off the caller loses coverage;

recording a time and a base station to which the cell phone of the caller resumes coverage;

repeating said recording steps with respect to a plurality of different base stations;

calculating a range of gap lengths based on the plurality of different base stations;

averaging the gap lengths in the range of gap lengths; and

specifying to the callee an average gap length based on a result of said averaging step.