Disconnection Causes
Polycom, Inc. 304
Disconnection Cause Values
99 An Information Element or
Parameter Does Not Exist
or is Not Implemented
A message was received containing elements or parameters that are
not defined or of a type that is defined but not implemented.
100 Invalid Information Element
Contents
A message other than SETUP, DISCONNECT, RELEASE, or
RELEASE COMPLETE has been received which has one or more
mandatory information elements containing invalid content.
101 The Message is Not
Compatible with the Call
State
A STATUS message indicating any call state except the Null state has
been received while in the Null state.
102 Recovery on Timer Expired An error handling procedure timer has expired.
103 Parameter Non-Existent or
Not Implemented – Passed
On (national use)
A message was received containing parameters that are not defined or
of a type that is defined but not implemented.
110 Message with
Unrecognized Parameter
Discarded
A message was discarded because it contained a parameter that was
not recognized.
111 Protocol Error, Unspecified A protocol error has occurred. No other disconnection cause applies.
127 Interworking, Unspecified An interworking call has ended.
Disconnection Cause Values
Value Call Disconnection Cause
0 Unknown
1 Participant hung up
2 Disconnected by User
5 Resources deficiency
6 Password failure
20 H323 call close. No port left for audio
21 H323 call close. No port left for video
22 H323 call close. No port left for FECC
23 H323 call close. No control port left
25 H323 call close. No port left for video content
51 A common key exchange algorithm could not be established between the MCU and the remote device
ISDN Disconnection Causes
Number Summary Description
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