Polycom ViewStation SP128 User Manual page 175

Appendix C
© Polycom, Inc.
Code Cause
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
127 Interworking,
unspecified
145 ISDN layer 1 and/or
2 link not
established
146 ISDN layer 3
connection to the
ISDN
switch/network
inactive
255 ISDN command
processing error
The remote equipment received an invalid
message, and no standard cause applies.
Cause 98 is usually due to a D-channel
error. If this error occurs systematically,
report it to your ISDN service provider.
The remote 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 remote 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 an
unexpected message that does not
correspond to the current state of the
connection. This is usually due to a
D-channel error.
A timer expiry initiated an error-handling
(recovery) procedure. This problem is
typically temporary.
An unspecified D-channel error when no
other standard cause applies.
An event occurred, but the network does
not provide causes for the action that it
takes. The precise problem is unknown.
User needs to check cabling, ISDN adapter
status and network connections.
A switch protocol error exists, or (in the
United States or Canada) a SPID
assignment problem. There is either a
switch protocol error,.
The ISDN signaling code has encountered
an error processing an ISDN action. ISDN
adapter busy-wait and retry.
157
ISDN Information
Definition
ViewStation SP User Guide