An active call handover arrangement for managing a handover between a plurality of telecommunication devices associated with a public extension number is provided. The arrangement includes a mobility server configured to manage a telecommunication session between a telecommunication device of a third-party caller and a first telecommunication device of the plurality of telecommunication devices. The arrangement also includes a switch component configured to be associated with at least one telecommunication device of the plurality of telecommunication devices. At least one telecommunication device is configured to include mobility client software. The switch component is also configured to enable a user to perform the handover between the first telecommunication device and a second telecommunication device of the plurality of telecommunication devices.