Viking's PC-7 privacy device prevents your phone call or fax and modem transmissions from being interrupted if someone accidentally picks up another extension. The PC-7 can also secure against internal eavesdropping by any other extension equipped with a Viking Teleguard© device.
The PC-7 is a seven foot modular cord with Teleguard© privacy built in. Designed to replace a standard single line modular cord, the PC-7 is ideal for telephones, fax machines or modems. The PC-7 protects the device that accesses the telephone line first by denying other Viking Teleguard© equipped devices access to the line until the call in progress has been terminated.
Incoming calls will ring all devices simultaneously, but the device that answers first denies any other Teleguard© equipped device access.