Replacement script

local chatservice = game:GetService("Chat")
local replicatedstorage = game:GetService("ReplicatedStorage")
local callevent = replicatedstorage:WaitForChild("CallEvent")
local twitterevent = replicatedstorage:WaitForChild("TwitterEvent")
local callfunctions = {}

callevent.OnServerEvent:Connect(function(player, target, type_)
    if type_ == "Start" then
        local player_ = game.Players:FindFirstChild(target)
        if not player_ then return end
         callevent:FireClient(player_, player.Name, "Incoming")
    elseif type_ == "Decline" then
        local player_ = game.Players:FindFirstChild(target)
        callevent:FireClient(player_, player.Name, "Decline")
    elseif type_ == "Accept" then
        local player_ = game.Players:FindFirstChild(target)
        if callfunctions[player] then callfunctions[player]:Disconnect() end
        if callfunctions[player_] then callfunctions[player_]:Disconnect() end
        callfunctions[player] = player.Chatted:Connect(function(message)
            local phone = player_.Character:FindFirstChild("iphonex")
            if phone then
                chatservice:Chat(phone.Handle, message, Enum.ChatColor.Red)
            end
        end)

        callfunctions[player_] = player_.Chatted:Connect(function(message)
            local phone = player.Character:FindFirstChild("iphonex")
            if phone then
                chatservice:Chat(phone.Handle, message, Enum.ChatColor.Red)
            end
        end)
        callevent:FireClient(player_, player.Name, "Accept")
    elseif type_ == "End" then
        local player_ = game.Players:FindFirstChild(target)
        if callfunctions[player] then
            callfunctions[player]:Disconnect()
        end
        if callfunctions[player_] then
            callfunctions[player_]:Disconnect()
        end
        callevent:FireClient(player_, player.Name, "End")
    end
end)

twitterevent.OnServerEvent:Connect(function(player, message)
    twitterevent:FireAllClients(player.Name..": "..message)
end)