Polycom RealPresence 800s Administrator's Manual page 696

RealPresence Collaboration Server (RMX) 800s/Virtual Edition Administrator's Guide
Value Call Disconnection Cause
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
53 Remote device did not open the encryption signaling channel
59 The remote devices' selected encryption algorithm does not match the local selected encryption algorithm
141 Called party not registered
145 Caller not registered
152 H323 call close. ARQ timeout
153 H323 call close. DRQ timeout
154 H323 call close. Alt Gatekeeper failure
191 H323 call close. Remote busy
192 H323 call close. Normal
193 H323 call close. Remote reject
194 H323 call close. Remote unreachable
195 H323 call close. Unknown reason
198 H323 call close. Small bandwidth
199 H323 call close. Gatekeeper failure
200 H323 call close. Gatekeeper reject ARQ
201 H323 call close. No port left
202 H323 call close. Gatekeeper DRQ
203 H323 call close. No destination IP value
204 H323 call close. Remote has not sent capability
205 H323 call close. Audio channels not open
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