From time to time, speakerphones are used to allow more than two people to take part in a telephone conversation at the same time without holding the phone to the ears.As the use of speakerphones can disturb other people in an office environment, having a conversation via speakerphones should happen in a closed room or an office with the door closed.It is also important to let the person on the other end of the line know when they are put on the speakerphone and immediately let them know who else will join the conversation.