A method of providing a cordless extension system for a plurality of communication devices in a defined environment, the method comprising the steps of: detecting that a first communication device of the plurality of communication devices is placing a call in the defined environment (205); in response to detecting, automatically creating a conference bridge involving all of the plurality of communication devices, wherein the first communication device is placed in an active mode, and wherein a second communication device of the plurality of communication devices that is on-hook is placed in a dormant mode (210). The invention proposes to include a Call Agent (CA) (600) that is configured to provide a cordless extension for the plurality of communication devices in a defined environment.