Description
If you need to keep a specific phone or device completely off the line during a call, the Viking TG-1 Privacy Exclusion Device makes it simple and transparent — no complicated wiring, no separate power supply required.
The TG-1 connects to a single analog phone line via modular or punchdown installation, automatically excluding the connected device when the line is in use. It works with any standard analog line carrying 12V DC or higher talk battery, making it compatible with the vast majority of residential and small business phone systems. Because it operates transparently, the connected phone or device behaves completely normally — users on either end never notice it's there.
This type of exclusion device is commonly used in offices, clinics, or multi-extension homes where privacy between extensions is a priority, or wherever you need to prevent a secondary device from picking up or interrupting an active call.
Our Expert Take: The TG-1 is a straightforward, no-frills solution for single-line privacy exclusion that installs cleanly into a punchdown block or standard modular jack. If you have a two-line setup or need to protect both lines simultaneously, Viking also offers a two-line version of this device — make sure you match the right model to your line count before ordering.
Key Features
- Excludes connected device from the line when the line is already in use
- Line powered — no external power supply or batteries needed
- Modular or punchdown installable for flexible wiring options
- Single-line (1 line) design
- Compatible with analog lines carrying 12V DC or higher talk battery
- Transparent operation — no audible or functional impact on active calls
Technical Specifications
- Power: Line powered
- Compatible Lines: Analog lines with 12V DC or higher talk battery
- Lines Supported: 1
- Installation: Modular or punchdown