Patent ID: 9565540
Date: 2017-02-07
CPC Classifications: H04W

Claim:
1. A method for retrieving missed group call information in a public safety communication system, the method comprising: determining, by a mobile station, that the mobile station has lost system coverage; storing, by the mobile station, a coverage loss time, wherein the coverage loss time is a time associated with the loss of system coverage; detecting, by the mobile station, a resumption of system coverage; querying, by the mobile station, an infrastructure for missed group calls, wherein the query comprises the coverage loss time; and in response to the query, receiving, by the mobile station, missed group call information, wherein the missed group call information is information associated with group calls initiated subsequent to the coverage loss time; wherein the missed group call information includes a text of a missed group call and wherein the method further comprises; storing the missed group call information; alerting a user of the mobile station that the missed group call information is received; in response to alerting the user, receiving an instruction from the user to display the text of the missed group call; and in response to receiving the instruction displaying the text of the missed group call.