Patent ID: 7965646

Claim:
A method for monitoring a stateful connection between wireless communications devices, the method comprising: generating a first code packet at a first of the wireless communications devices; transmitting the first code packet from the first of the wireless communications devices to a second of the wireless communications devices; determining whether a second code packet generated by the second of the wireless communications devices in response to receipt of the first code packet is received by the first of the wireless communications devices within a predetermined time after transmission of the first code packet from the first of the wireless communications devices, wherein the first code packet and the second code packet acknowledge the stateful connection; receiving the second code packet as part of a communications signal; filtering the second code packet from the communications signal; comparing a plurality of time differences from receiving a plurality of second code packets to determine a time delay; transmitting the filtered communications signal to a speaker for conversion to an acoustic signal; generating, at the first wireless communications device, an audible alert to indicate a potential degradation in the stateful connection, in response to determining, at the first wireless communications device, that the stateful connection has potentially degraded, based on a failure to receive at least one of the plurality of second code packets.