Operation Manual

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7 Tips & Tricks

General Error Conditions

Not every error represents an actual defect in

ITZ!X PCITZ!X PC

ITZ!X PC or the

connected terminal devices. This chapter discusses general

error conditions, their causes and possible solutions.

Work through the following checklist before starting operation:

• Check the LEDs on

ITZ!X PCITZ!X PC

ITZ!X PC. The meanings of the

individual LEDs are listed in the „Package Contents“ section

of Chapter 1.

•Is

ITZ!X PCITZ!X PC

ITZ!X PC ready for operation? Make sure that the green

LED labelled „Power“ is lit.

• Check the orange LEDs for extensions 1, 2, 3 and 4:

When an extension is picked up or a connection is active at

an extension, this is indicated by an LED lit orange. Incoming

calls are signalled by a blinking LED.

If the LED for an active extension is not lit, this suggests that

the telephone cable is defective or corrected incorrectly.

• Is the PC cable properly connected to the PC and

ITZ!XITZ!X

ITZ!X

PCPC

PC?

• Is the cable connected to the correct serial interface?

• Check the

ITZ!X PCITZ!X PC

ITZ!X PC setup in the

ITZ!X PCITZ!X PC

ITZ!X PC directory.

• Are the plugs inserted correctly into the socket and into

ITZ!X PCITZ!X PC

ITZ!X PC?

• Is the ISDN cable properly plugged into the ISDN socket at

the NT (Network Terminator) and into

ITZ!X PCITZ!X PC

ITZ!X PC?

• Are the telephone, modem, and telefax cables properly

plugged into

ITZ!X PCITZ!X PC

ITZ!X PC?

• Is the terminal device defective? Test the device at another

ITZ!X PCITZ!X PC

ITZ!X PC extension or on another exchange.

No dial tone

Make sure the extension is configured for automatic outside

dialing rather than as an internal extension (outside dialing

preceded by “0”).