[thaKing]

There was un-needed brackets "{ and }", and you should return 1, if you don't want to see "SERVER: Unknown command"

Код:

CMD:hangup(playerid, params[])
{
    new targetid = PlayerData[playerid][pCallLine];
    SetPlayerSpecialAction(playerid, SPECIAL_ACTION_STOPUSECELLPHONE);
    SetTimerEx("RemoveAttachedObject", 1500, false, "dd", playerid, 6);
    
    if (PlayerData[playerid][pEmergency] || PlayerData[playerid][pPlaceAd])
    {
        PlayerData[playerid][pEmergency] = 0;
        PlayerData[playerid][pPlaceAd] = 0;
        
        SendNearbyMessage(playerid, 30.0, COLOR_PURPLE, "** %s elrakja telefonjбt a zsebйbe.", ReturnName(playerid, 0));
    }
    if (PlayerData[playerid][pIncomingCall])
    {
        SendClientMessage(playerid, COLOR_YELLOW, "[TELEFON]:{FFFFFF} Kinyomtad a bejővő hнvбst.");
        SendClientMessage(targetid, COLOR_YELLOW, "[TELEFON]:{FFFFFF} Kinyomtбk a telefont.");
        
        KillTimer(CallTimer[playerid]);
        KillTimer(CallTimer[targetid]);

        SendNearbyMessage(playerid, 30.0, COLOR_PURPLE, "** %s előveszi telefonjбt, megnйzi, majd kinyomja a hнvбst.", ReturnName(playerid, 0));
    } else {
        SendClientMessage(playerid, COLOR_YELLOW, "[TELEFON]:{FFFFFF} Leraktad a telefont.");
        SendClientMessage(targetid, COLOR_YELLOW, "[TELEFON]:{FFFFFF} Leraktбk a telefont.");
        
        KillTimer(CallTimer[playerid]);
        KillTimer(CallTimer[targetid]);

        SendNearbyMessage(playerid, 30.0, COLOR_PURPLE, "** %s elrakja telefonjбt a zsebйbe.", ReturnName(playerid, 0));
        SendNearbyMessage(targetid, 30.0, COLOR_PURPLE, "** %s elrakja telefonjбt a zsebйbe.", ReturnName(targetid, 0));
    }
    PlayerData[playerid][pIncomingCall] = 0;
    PlayerData[targetid][pIncomingCall] = 0;

    PlayerData[playerid][pCallLine] = INVALID_PLAYER_ID;
    PlayerData[targetid][pCallLine] = INVALID_PLAYER_ID;
	return 1;
}

EDIT: And of course you should make function, like, "IsPlayerUsingCellphone" or something, and then

Код:

if (IsPlayerUsingCellphone(playerid) == -1)
	return SendClientMessage(playerid, -1, "You aren't using cellphone!");