Polycom RMX 1500 Administrator's Manual page 848

Polycom RMX 1500/2000/4000 Getting Started Guide
A-16
Table A-2 ISDN Disconnection Causes (Continued)
Number Summary
100 Invalid
Information
Element
Contents
101 The Message is
Not Compatible
with the Call
State
102 Recovery on
Timer Expired
103 Parameter Non-
Existent or Not
Implemented –
Passed On
(national use)
110 Message with
Unrecognized
Parameter
Discarded
111 Protocol Error,
Unspecified
127 Interworking,
Unspecified
Disconnection Cause
Description
A message other than SETUP, DISCONNECT,
RELEASE, or RELEASE COMPLETE has been
received which has one or more mandatory
information elements containing invalid content.
A STATUS message indicating any call state
except the Null state has been received while in
the Null state.
An error handling procedure timer has expired.
A message was received containing parameters
that are not defined or of a type that is defined
but not implemented.
A message was discarded because it contained
a parameter that was not recognized.
A protocol error has occurred. No other
disconnection cause applies.
An interworking call has ended.