Users may not want callers to receive busy tone if they are on another call. Instead, callers hear a normal ring tone. Users hear an alert that there is a call waiting.
Users can decide to finish or hold the current call and answer the one that is waiting. The amount of information that is available about the call that is waiting depends on the type of phone the user has, or if they are using Avaya one-X® Portal for IP Office or a soft client.
Because the call waiting tone can be disruptive, for example during conference calls. Users can turn the feature on or off and even suspend it for a single call.