Appendix A - Disconnection Causes; Ip Disconnection Causes - Polycom RMX 1500 Administrator's Manual

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-1
Disconnection Cause
Disconnected by User
Remote device did not open the
encryption signaling channel
Remote devices selected encryption
algorithm does not match the local
selected encryption algorithm
Resources deficiency
Call close. Call closed by MCU
H323 call close. No port left for audio
H323 call close. No port left for video
H323 call close. No port left for FECC
H323 call close. No control port left
H323 call close. No port left for videocont
Polycom, Inc.
Appendix A
Call Disconnection Causes
Description
The user disconnected the endpoint from the
conference.
The endpoint did not open the encryption signaling
channel.
The encryption algorithm selected by the endpoint does
not match the MCU's encryption algorithm.
Insufficient resources available.
The MCU disconnected the call.
Insufficient audio ports.
The required video ports exceed the number of ports
allocated to video in fixed ports.
The required data ports exceed the number of ports
allocated to data in fixed ports.
The required control ports exceed the number of ports
allocated to control data in fixed ports.
The required video content ports exceed the number of
ports allocated to video content in fixed ports.
A-1