Polycom VSX 3000 Administrator's Manual page 195

Code Cause
86 Call having
requested call
identity has been
cleared
88 Incompatible
destination
91 Invalid transit
network specified
95 Invalid message,
unspecified
96 Mandatory
information element
is missing
97 Message type
nonexistent or not
implemented
98 Message
incompatible with
call state or
message type
nonexistent
99 Information element
nonexistent or not
implemented
100 Invalid information
element contents
101 Message not
compatible with call
state
102 Recovery on timer
expiry
111 Protocol error,
unspecified
Definition
The network received a call resume request
containing a call identity information element for a
call that was cleared while suspended, either by
timeout or by the remote user.
Indicates that an attempt was made to connect to
non-ISDN equipment, such as an analog line.
The ISDN exchange was asked to route the call
through an unrecognized intermediate network.
An invalid message was received, for an unknown
reason. This is usually due to a D-channel error. If
this error occurs systematically, report it to your
ISDN service provider.
The equipment received a message that did not
include one of the mandatory information
elements. This is usually due to a D-channel error.
If this error occurs systematically, report it to your
ISDN service provider.
The equipment received a message of a type that
is invalid or not supported. This code indicates
either a problem with the remote configuration or a
problem with the local D channel.
The equipment received a message that is not
valid in the current call state. Cause 98 is usually
due to a D-channel error. If this error occurs
systematically, report it to your ISDN service
provider.
The equipment received a message that includes
information elements which were not recognized.
This is usually due to a D-channel error. If this
error occurs systematically, report it to your ISDN
service provider.
The equipment received a message that includes
invalid information in the information element. This
is usually due to a D-channel error.
The remote equipment received a message that
does not correspond to the current state of the
connection. This is usually due to a D-channel
error.
A time-out has triggered an error-handling
(recovery) procedure. This problem is typically
temporary.
An unspecified D-channel error when no other
standard cause applies.
Appendix
Appendix - 9