Polycom RMX 1500 Administrator's Manual page 862

Appendix A-Disconnection Causes
A-14
Table A-2 ISDN Disconnection Causes (Continued)
Number Summary
63 Service or
Option Not
Available,
Unspecified
65 Bearer
Capability Not
Implemented
66 Channel Type
Not
Implemented
69 Requested
Facility Not
Implemented
70 Only Restricted
Digital
Information
Bearer
Capability is
Available
(national use)
79 Service or
Option Not
Implemented,
Unspecified
81 Invalid Call
Reference Value
82 Identified
Channel Does
Not Exist
Disconnection Cause
Description
The service or option is unavailable. No other
disconnection cause applies.
The requested bearer capability is not
supported.
The requested channel type is not supported.
The requested supplementary service is not
supported.
Unrestricted (64kb) bearer service has been
requested but is not supported by the
equipment sending this cause.
An unsupported service or unimplemented
option has been requested. No other
disconnection cause applies.
A message has been received which contains a
call reference which is currently unassigned or
not in use on the user-network interface.
A request has been received to use a channel
which is currently inactive or does not exist.