Appendix A

Disconnection Causes

If a participant was unable to connect to a conference or was disconnected from a conference, the Connection Status tab in the Participant Properties dialog box indicates the call disconnection cause. In some cases, a possible solution may be displayed.

A video participant who is unable to connect the video channels, but is able to connect as an audio only participant, is referred to as a Secondary participant. For Secondary participants, the Connection Status tab in the Participant Properties dialog box indicates the video disconnection cause. In some cases, a possible solution may be indicated.

The table below lists the call disconnection causes that can be displayed in the Call Disconnection Cause field and provides an explanation of each message

IP Disconnection Causes.

Table A-1Call Disconnection Causes

Disconnection Cause

Description

 

 

Disconnected by User

The user disconnected the endpoint from the

 

conference.

 

 

Remote device did not

The endpoint did not open the encryption

open the encryption

signaling channel.

signaling channel

 

 

 

Remote devices selected

The encryption algorithm selected by the

encryption algorithm does

endpoint does not match the MCU's encryption

not match the local

algorithm.

selected encryption

 

algorithm

 

 

 

A-1

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Polycom 2000/4000 manual Appendix a, IP Disconnection Causes