Patent ID: 8559602

Claim:
A method for determining termination of an emergency service call; said emergency service call being connected with an emergency service answering entity in an emergency service network employing a locating unit for ascertaining a geographic origin for said emergency service call; the method comprising: (a) receiving a first signal from said emergency service network at said locating unit establishing to said locating unit existence of said emergency service call; (b) monitoring arrival of subsequent query signals relating to said geographic origin arriving at said locating unit from said emergency service answering entity after receiving said first signal; each respective said subsequent query signal soliciting a responsive signal from said locating unit relating to said geographic origin; (c) if a respective said subsequent query signal is received by said locating unit, within a first predetermined time interval, considering that said emergency service call is not terminated; and (d) if no respective said subsequent query signal is received by said locating unit, within a second predetermined time interval, considering that said emergency service call is terminated.