INSYS Pocket ISDN
ISDN Error Messages
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ISDN Error Messages
The exact failure cause is recorded in the protocol memory of the INSYS Pocket
ISDN in case of a faulty connection establishment. Possible error messages are
described here; a complete list of the possible error messages can be found in the
subsequent table (refer to section 0).
Protocol error layer 1 (error code 3301)
There is no physical connection to the ISDN network. Check the cable confection
between the ISDN adapter and the ISDN port. Are you using a suitable cable? Is
the connection socket properly installed? Is the ISDN network terminator correctly
activated? Do you have other devices on your ISDN line that are maybe faulty or
that are blocking the S0 bus?
Protocol error layer 2, e.g. DTE address not valid, TEI not valid (error code 3302)
Could not connect to the ISDN network. This may be due to a wrong ISDN
protocol. Have you set "1TR6" (German ISDN) as ISDN protocol even though your
ISDN line is set up for "DSS1" (Euro ISDN). or vice versa?
Unallocated (unassigned) number (error code 3481)
"No connection under this number". The number you are calling could not be
reached because it has no line assigned to it. The phone number has the right
format. Enquire at your telephone company or the operator of your telephone
exchange what the correct number is.
Normal call clearing (error code 3490)
"Connection terminated normally". One of the users of the connection cancelled
the connection. The connection was not cancelled by the ISDN network.
User busy (error code 3491)
"Busy". The number you are calling cannot answer any calls at the moment
because all channels are being used.
No user responding (error code 3492)
The number you are calling did not answer within the time period required by your
connection. There is probably no terminal device connected to the number you are
calling. Contact the other party to establish the cause.
No answer from user (user alerted) (error code 3493)
The number you are calling confirmed call received within the time period required,
but a connection was not established, however. If the terminal device of the other
party is a telephone, then it rang, but the call was not answered. Try again later.
