Comtrol InterChange VS 3000 Series Installation And Configuration Manual page 61

Table 5. ISDN Cause Codes (Continued)
Decimal Brief Description
Parameter non-
existent or not
103
implemented - passed
on (national use)
Message with
110 unrecognized
parameter discarded
Protocol error,
111
unspecified
Interworking,
127
unspecified
* The switch is programmed wrong for Cause Codes 97 through 100.
Expanded Description
The sending equipment received a
message including parameters not
recognized, either because the they are
not defined or because they are defined
but not implemented. The parameters
were ignored—except if the equipment
sending this cause is an intermediate
point, in which case the parameters pass
unchanged.
The sending equipment discarded a
received message that includes a
parameter that is not recognized.
No other cause in the protocol error class
applies.
An interworking call (usually a call to
SW56 service) has ended.
ISDN Cause Codes
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