Auto Exclusion Device- For punch down or terminal block installation in series with Tip or Ring. One TG-1 per device.

Auto Exclusion Device Features:

• Prevent your phone calls or fax/modem transmissions from being interrupted if someone accidentally picks up another extension
• Teleguard also protects against eavesdroppers
• With Viking's Teleguard, whichever device accesses the C.O. or PABX line first denies any other teleguard-equipped device access to the line until the call in progress is terminated
• Incoming calls will ring into all devices simultaneously - The device that answers first denies any other teleguard-equipped device access
• Any telecom device not equipped with Teleguard can always break into a phone call or transmission