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Appendix
© 1998 by TELES AG Berlin, Version 1.30/iTA-eu/f/8.02, Issue: June 1998 Page 31
6.3 Troubleshooting
In case you do not hear a dial tone on your terminal device (i.e. telephone), you can help iso-
late the problem by going through the following steps:
Does the status LED light up as soon as you lift the receiver?
Yes Your telephone is properly attached. But do check the cable to the ISDN line.
No Check that the RJ-11 cable is securely plugged into the TELES.iTA/2TR Box and
the telephone.
When you lift the receiver, you do not hear a dial tone.
Cause A Personal CallBack connection or Call forwarding is in progress. The yellow
LED is lit.
Solution Wait until the connection has been terminated and try again.
Telephone does not ring for incoming calls; outgoing calls are possible though.
Cause You’ve entered the incorrect number for your own number.
Solution Reenter the number found in the documents you received from your local tele-
phone company.
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