There is no physical connection to the ISDN network. The number you are calling could not be reached because it has no line assigned to it. This service or option may need to be enabled by the operator of the ISDN network for you or for the other party. Enquire at your telephone company or the operator of your telephone exchange what the correct number is. Is the connection socket properly installed? No answer from user user alerted. The call cannot be answered, therefore.

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The call could also have been cancelled by the other person while it was parked. Problems parking calls and resuming parked calls.

Message not compatible with call state cxpi message type non-existent or not implemented. Only ONE device can answer the call in each case. S5 Box Login Form. This error fapi occurs when your waiting call is refused by the person you are trying to reach. Another application got that call. The devices then react according to how they are set up, by ringing, ignoring the call or by answering the call.


The call cannot be answered, therefore.

ISDN Software

Contact the other party 2.00 find out the cause. The number you are calling did not answer within the time period required by your connection. Contact your telephone company for the new number.

If the terminal device of the other party is a telephone, then it rang but the call was not answered. Introduction Values Our offices Partners Press. You can work round this problem by turning off the fax option in the settings for your CAPI driver.

Protocol error layer 2. The party you are calling could not be reached because the number you called is in the wrong format or incomplete. Parked calls are only available for about two minutes. It may be that when you parked the call you chose a code number that is already occupied. The terminal device of the other party is not compatible with the terminal device that is making the call. Protocol error layer 1 broken line or B-channel removed by signaling protocol.

Destination out of order. Temporary problems in 20 ISDN network. Close down the application you do not need.

The device that answers the call first gets the connection. There is probably no terminal device connected to the number you are calling.


Common ISDN Application Programming Interface – Wikipedia

Perhaps you tried to resume a call that was not parked in the first place. The isdh was not cancelled by the ISDN network. The operating system is overloaded. This error could occur, for example, when a digital fax device G4 fax is called by a telephone.

Dan Kegel’s ISDN Page

The phone number has the right format, however. Could not connect to the ISDN network.

Are you using a suitable cable? Is the connection socket properly installed? Contact the other party to establish the cause. The device reached under the phone number refused the call, although it was not busy and was able to answer the call. No answer from user user alerted.