Comtrol InterChange VS 3000 Series Installation And Configuration Manual page 59

Table 5. ISDN Cause Codes (Continued)
Decimal Brief Description
Service or option not
79 implemented,
unspecified
Invalid call reference
81
value
Identified channel
82
does not exist
A suspended call
83 exists, but this call
identity does not
84 Call identity in use
85 No call suspended
Call having the
86 requested call identity
has been cleared
User not a member of
87
CUG
Incompatible
88
destination
90 Non-existent CUG
Expanded Description
No other service- or option-not-available
cause code applies.
The sending equipment has received a
message with a call reference not
currently in use on the user-network
interface.
The sending equipment has received a
request to use a channel not activated on
the interface for a call. For example, if a
user has subscribed to those channels on
a primary rate interface numbered from l
to 12 and the user equipment or the
network attempts to use channels 13
through 23.
A call-resume has been attempted with a
call identity that differs from that in use
for any presently suspended call(s).
The network has received a call-
suspended request containing a call
identity (including the null call identity)
that is already in use.
The network has received a call-resume
request containing a call identity element
that does not indicate any suspended call
within the domain of interfaces.
The network has received a call-resume
request containing a call identity
information element indicating a
suspended call that has in the meantime
been cleared while suspended; either by
the network time-out or the remote user.
The called user for the incoming Closed
User Group call is not a member of the
specified CUG or the calling user is an
ordinary subscriber calling a CUG
subscriber.
The sending equipment has received a
request to establish a call that has low/
high layer compatibility or other
compatibility attributes (for example,
data rate) that cannot be accommodated.
Another possibility is sending a DISPLAY
to a station with no display feature.
The specified CUG does not exist.
ISDN Cause Codes
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