If a mobile telephone has sent a restricted delivery mode message to the network, also referred to as "Message Mode", the mobile network sets a "Message Mode" flag in the user's profile. For an originating call the profile is accessed in the normal manner, and, if that flag is set, the network sends a "Message Only--Leave Message" announcement to the caller, together with a command signal to switch the caller's telephone into Write Messages mode so that the calling user can immediately enter a text message via the keypad without having to select manually the Write Messages function from the Messages function of the menu.