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General| Brand | Radio Shack |
|---|---|
| Model | SYSTEM 612 |
| Category | Telephone |
| Language | English |
Summarizes the main features like 4-line capability, intercom, speakerphone, and advanced call handling.
Explains how to connect the speakerphone to one or multiple telephone lines using modular jacks.
Guides on installing AAA backup batteries and precautions to prevent damage.
Guides on assigning unique extension numbers for intercom and paging functionality.
Instructions to configure the phone for tone or pulse dialing based on service type.
Step-by-step guide to set the current date and time using a specific format.
Details line status indicators and the line-lock feature for call exclusivity.
Details how to conduct conference calls with two outside callers or one outside and internal stations.
Guides on storing up to 40 numbers in memory for quick dialing using one or two buttons.
Provides solutions for common issues like connection problems, settings, and dialing errors.
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