Polycom RMX 1500 Administrator's Manual page 865

Table A-2 ISDN Disconnection Causes (Continued)
Number Summary
110 Message with
Unrecognized
Parameter
Discarded
111 Protocol Error,
Unspecified
127 Interworking,
Unspecified
Polycom RMX 1500/2000/4000 Administrator's Guide
Disconnection Cause
Description
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.
A-17