Polycom DOC2091A manual 151

Appendix

ISDN Cause Codes

Cause	Cause Description	Definition
Code
63	Service or option not	An unspecified reason prevents the network or remote
	available, unspecified	equipment from providing the requested service option. This
		might be a subscription problem.
65	Bearer capability not	The network cannot provide the bearer capability requested by
	implemented	the user.
66	Channel type not	The network or the destination equipment does not support the
	implemented	requested channel type.
69	Requested facility not	The supplementary service is not supported by remote
	implemented	equipment.
70	Only restricted digital	The network is unable to provide unrestricted digital
	information bearer is	information over bearer capability.
	available
79	Service or option not	The network or remote equipment is unable to provide the
	available, unspecified	requested service option for an unspecified reason. This might
		be a subscription problem.
81	Invalid call reference	The remote equipment received a call with a call reference that
	value	is not currently in use on the user-network interface.
82	Identified channel does not	The receiving equipment is requested to use a channel that is
	exist	not activated on the interface for calls.
83	A suspended call exists but	The network received a call resume request. The call resume
	this call identity does not	request contained a call identify information element that
		indicates 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 that indicates 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	The network received a call resume request. The call resume
	identity has been cleared	request contained a call identity information element, which
		once indicated a suspended call. How ever, the suspended call
		was cleared either by time-out or by the remote user.
88	Incompatible destination	Indicates that an attempt was made to connect to non-ISDN
		equipment. For example, to an analog line.
91	Invalid transit network	The ISDN exchange was asked to route the call through an
	specified	unrecognized intermediate network.
95	Invalid message,	An invalid message was received, and no standard cause
	unspecified	applies. This is usually due to a D-channel error. If this error
		occurs systematically, report it to your ISDN service provider.

Global Management System User’s Guide Appendix 151