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Appendix D ISDN Information
ViewStation User Guide 208 www.polycom.com
82 Identified channel
does not exist
The receiving equipment is requested to
use a channel that is not activated on the
interface for calls.
83 A suspended call
exists but this call
identity does not
The network received a call resume
request. The call resume request
contained a call identify information
element indicating that the call identity is in
use for a suspended call.
84 Call identity in use The network received a call resume
request that contained a Call Identify
information element indicating that it is in
use for a suspended call.
85 No call suspended The network received a call resume
request when there was not a suspended
call pending. This might be a transient error
that will be resolved by successive call
retries.
86 Call having
requested call
identity has been
cleared
The network received a call resume
request. The call resume request
contained a call identity information
element, which once indicated a
suspended call. However, the suspended
call was cleared either by timeout or by the
remote user.
88 Incompatible
destination
Indicates that an attempt was made to
connect to non-ISDN equipment, such as
to an analog line.
91 Invalid transit
network specified
The ISDN exchange was asked to route the
call through an unrecognized intermediate
network.
95 Invalid message,
unspecified
An invalid message was received, and no
standard cause applies. This is usually due
to a D-channel error. If this error occurs
systematically, report it to your ISDN
service provider.
96 Mandatory
information element
is missing
The receiving 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.
97 Message type
nonexistent or not
implemented
The receiving equipment received an
unrecognized message, either because the
message type was invalid or because the
message type was valid but not supported.
Cause 97 is due to either a problem with
the remote configuration or a problem with
the local D channel.
Code Cause Definition