Excalibur 366 Specifiche Scaricare il pdf (Pagina 170)

Excalibur Multirate DAP Installation and Operation

6-22

ISDN Dial Backup Alarms

For units equipped with the ISDN IDBU feature, an alarm message is displayed on the

LCD screen when the DAP receives a Cause Information Element from the ISDN

network. The cause number is the cause value received in the Cause Information

Element. The associated text is a paraphrase (edited to save space) of the CCITT Q.931

definition for that cause value. See Annex G of the Q.931 standard for the precise

definition of these cause values.

The DAP does not report all the cause values defined by the Q.931 standard. The

following values are reported:

ISDN Cause 1 Unassigned Number ISDN Cause 58 Capability Unavailable

ISDN Cause 2 No Route to Transit Net ISDN Cause 63 Service/Opt. Unavailable

ISDN Cause 6 Channel Unacceptable ISDN Cause 65 Capability Unimplemented

ISDN Cause 18 No User Responding ISDN Cause 66 Chan, Type Unimplemented

ISDN Cause 19 No Answer from User ISDN Cause 69 Facility Not Implemented

ISDN Cause 21 Call Rejected ISDN Cause 70 Restricted Info. Only

ISDN Cause 22 Number Changed ISDN Cause 79 Serv./Opt. Unimplemented

ISDN Cause 26 Selected User Clearing ISDN Cause 81 Invalid Reference Value

ISDN Cause 27 Destination Out of Order ISDN Cause 82 Channel Does Not Exist

ISDN Cause 28 Invalid Number Format ISDN Cause 83 ID Does Not Exist

ISDN Cause 29 Facility Rejected ISDN Cause 84 Call ID In Use

ISDN Cause 34 No Circuit/Channel Avail ISDN Cause 85 No Call Suspended

ISDN Cause 38 Network Out of Order ISDN Cause 86 Call Has Been Cleared

ISDN Cause 41 Temporary Net Failure ISDN Cause 88 Incompatible Destination

ISDN Cause 42 Switch Congestion ISDN Cause 90 Direct Call Not Subscr.

ISDN Cause 43 User Info Discarded ISDN Cause 91 Invalid Transit Net Sel.

ISDN Cause 44 Cir/Channel Not Avail ISDN Cause 95 Invalid Message

ISDN Cause 47 Resource Unavailable ISDN Cause 96 Info Element Missing

ISDN Cause 49 Quality Not Available ISDN Cause 97 Message Unimplemented

ISDN Cause 50 Facility Not Subscribed ISDN Cause 98 Message Not Permissible

ISDN Cause 51 Bearer Incompatible ISDN Cause 99 IE Unimplemented

ISDN Cause 53 Service Op Violated ISDN Cause 100 Invalid IE Contents

ISDN Cause 54 Incoming Calls Barred ISDN Cause 118 Invalid Calling Number

ISDN Cause 57 Capability Unauthorized ISDN Cause 127 Cause Unknown

The following message only appears when the Switch Type parameter is set to NI-1. It is

generated when the switch cannot assign a requested channel, which could be caused by

circuit or channel congestion, network congestion, or other capacity related conditions.

ISDN Status No Channel Available

The following messages are generated as a result of tests initiated via the Embedded

Operating Channel (EOC) at network's request.

ISDN Net EOC Request Operate 2B+D Loopback

ISDN Net EOC Request Operate B1 Loopback

ISDN Net EOC Request Operate B2 Loopback

ISDN Net EOC Request Request Corrupt CRC

ISDN Net EOC Request Notify of Corrupted CRC

ISDN Net EOC Request Return to Normal

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Excalibur 366 Specifiche Pagina 170

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