Abstract: Where a source of data has a time at which it is to transmit data, if it has data to transmit, for example as determined by a timer, this time is advanced when there is an active data connection. In this manner, rather than the data connection being torn down, and then immediately set up again, the data can be transmitted before the connection is torn down. In some embodiments, a history is maintained in terms of how long data connections are maintained. Then, once data transmission on an active connection ceases, the times are advanced, or not, depending on a likelihood that the connection will stay up for some further period of time.