Table/desktop installation
3.Check the extension number. Once you have attached the Line 1 telephone line and AC power to the set and the wall outlets, the set automatically assigns the next available extension number, and shows it in the second line of the display. Plug in the phones in the same order as the extension numbers you assigned on the system planner, (see page 4).
4.Connect the handset cord. Plug one end of the coiled handset cord into the HANDSET jack on the left side of the phone. Plug the other end into the handset and hang up.
5.Check for dial tone. Lift the handset and listen for a dial tone. If you cannot hear a dial tone, please see Troubleshooting beginning on page 86 for details.
6.Identify lines. To identify the telephone lines, press [
SPEAKER], then the [LINE 1] key. Call one of the telephone numbers. If there is a busy signal, it confirms that line 1 is the number called. If line 2 rings, line 2 is the number called. Use the same steps to identify the other two telephone lines.
AT&T shall not be responsible for the cost of installation, any damages, lost business, direct or indirect expenses accrued or associated with installation, or other compatibility issues that may arise as a result of using this product while you subscribe to DSL, Fiber optic, VoIP (Voice over Internet Protocol), or cable telephone service.
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