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Event Data
Issue 1 June 2005 137
- IXC: The IXC matching pattern is administered incorrectly or not at all on the dial-plan,
causing incorrect IXC manipulation.
- AAR/ARS digit conversion: The wrong digit string substitution is being made. The call is
being routed into the wrong network and over the wrong route pattern. Further
conversion is needed but the dial string is restricted from further conversion.
- AAR/ARS digit analysis: Call type is incorrect for the call being made specifying the
wrong type of number and/or number plan information, or it is preventing code
conversion from taking place. Call is being routed to the incorrect route pattern where the
incorrect digit manipulation and/or code conversion is taking place.
- ARS toll analysis: Toll/no toll classification is incorrect, causing incorrect code conversion
at the route pattern.
- Route pattern: Incorrect code conversion due to wrong entries in NPA, prefix mark, and
toll list/prefix mark fields. Deleting the wrong number of digits or inserting the wrong
digits. Failing to strip IXC or international code digits, stripping a user-dialed IXC code, or
IXC forcing the call to the wrong interexchange carrier. Number format changed to a
format incorrect for the call type. The incorrect service or feature is specified for the call
being made on a CBC trunk group preference.
Cause Value 04
[0x4/0x84] -
Send special information tone/
Vacant Code (NI-2: National ISDN 2)
Cause Value 04 indicates the remote number that was dialed could not be reached.
Cause Value 04 (NI-2) indicates that the destination requested by the calling party cannot be
reached because the Numbering Plan Area (NPA) or Central Office (CO) code is vacant
(unassigned).
Troubleshooting
● Check the numbers sent for any missing prefixes or service values that were needed to
access the network.
● Check the Cause Value Information Element (LOC). See Location Codes on page 130.
● Check Communication Manager administration.
- Dial-plan/Location: The home NPA is administered incorrectly, causing incorrect code
conversion.
- IXC: The IXC matching pattern is administered incorrectly or not at all on the dial-plan,
causing incorrect IXC manipulation.
- AAR/ARS digit conversion: The wrong digit string substitution is being made. The call is
being routed into the wrong network and over the wrong route pattern. Further
conversion is needed but the dial string is restricted from further conversion.