See more at http://www.Abbeytelecom.com <br /><br />Instructions on how to listen in on other extensions whilst they are on a call on a Samsung Phone System. This applies to all Samsungs old or new. DCS or OfficeServ. <br /><br />Installation and repairs UK-wide on all Samsungs Telephones whether discontinued or not~Telephone 0161 643 8000
