Patent ID: 8681751
Filing Date: 2014-03-25
Classification: H04M,H04W

Abstract:
1. A method comprising: determining an event affecting availability of a terminal over a radio communication network, wherein the terminal is configured to utilize a group Push-to-Talk communication service supported by the radio communication network; checking setting of an incoming session barring indicator corresponding to the terminal, wherein the incoming session barring indicator specifies that the terminal is configured to not accept incoming group Push-to-Talk communication sessions; generating presence information based on the setting of the incoming session barring indicator and the event, wherein the presence information is used to determine the availability of the terminal for the group Push-to-Talk communication service; and generating a message including the presence information regarding the availability of the terminal; the method further comprising: checking a setting of an instant personal alert barring indicator corresponding to the terminal; and generating the presence information further based on the setting of the instant personal alert barring indicator, where the setting of the instant personal alert barring indicator determines whether to accept or not accept an instant personal alert.