Abstract: In connection with a push-to-talk-over-cellular (PoC) function of a cellular telephone, the user interface of the cellular telephone presents certain information to the user of the cellular telephone concerning a current group call session. The information may include an indication of what proportion of the members of a group designated for the group call session are currently active. In addition, the user interface may provide a list of the members of the designated group, with icons indicating the current status of the group members. When a member of the group is currently talking, the talking member's name may be displayed by the user interface.

Abstract: A method of operating a cellular telephone system includes detecting that a first telephone call to a cellular telephone cannot be completed due to a lack of wireless connection to the cellular telephone. The method further includes detecting that the cellular telephone is re-connected to the system. In response to detecting that the cellular telephone is re-connected, data is sent to the cellular telephone, the data being indicative of the first telephone call. The method also includes storing the data in a missed call list in the cellular telephone.

Abstract: In connection with a push-to-talk-over-cellular (PoC) function of a cellular telephone, the user interface of the cellular telephone presents certain information to the user of the cellular telephone concerning a current group call session. The information may include an indication of what proportion of the members of a group designated for the group call session are currently active. In addition, the user interface may provide a list of the members of the designated group, with icons indicating the current status of the group members. When a member of the group is currently talking, the talking member's name may be displayed by the user interface.

Abstract: In connection with a push-to-talk-over-cellular (PoC) function of a cellular telephone, the user interface of the cellular telephone presents certain information to the user of the cellular telephone concerning a current group call session. The information may include an indication of what proportion of the members of a group designated for the group call session are currently active. In addition, the user interface may provide a list of the members of the designated group, with icons indicating the current status of the group members. When a member of the group is currently talking, the talking member's name may be displayed by the user interface.

Abstract: A method of operating a cellular telephone system includes detecting that a first telephone call to a cellular telephone cannot be completed due to a lack of wireless connection to the cellular telephone. The method further includes detecting that the cellular telephone is re-connected to the system. In response to detecting that the cellular telephone is re-connected, data is sent to the cellular telephone, the data being indicative of the first telephone call. The method also includes storing the data in a missed call list in the cellular telephone.

Abstract: A method for using a mobile telephone to make a calling card telephone call includes imputing calling card information into the mobile telephone, wherein the calling card information includes a calling card access number and a calling card password. The calling card information is saved in a memory of the mobile telephone so that it may be transmitted by the mobile telephone. The saved calling card information is protected with a phone code, enabling a user to make the calling card telephone call from the mobile telephone without re-entering the calling card information by entering a PIN which is compared against the phone code.

Abstract: In connection with a push-to-talk-over-cellular (PoC) function of a cellular telephone, the user interface of the cellular telephone presents certain information to the user of the cellular telephone concerning a current group call session. The information may include an indication of what proportion of the members of a group designated for the group call session are currently active. In addition, the user interface may provide a list of the members of the designated group, with icons indicating the current status of the group members. When a member of the group is currently talking, the talking member's name may be displayed by the user interface.