Cisco Cisco TelePresence Video Communication Server Expressway 릴리즈 노트
Open issues
Cisco TelePresence Video Communication Server Software Release Notes (X8.2.1)
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Identifier
Description
CSCuh78199 Symptom: Multiway conference already established between three endpoints (two CUCM and
one VCS hosted). An additional CUCM user calls the conference initiator on the VCS but cannot
be joined to the conference.
be joined to the conference.
Workaround: None.
CSCuh98112 Symptom: When an endpoint dials to the internet, it sends its private IP to Cisco side in the SDP
and hence media fails. When you force the call through the VCS, DNS returns port 5061 and
5060 for cisco.com, however 5061 is disabled on the firewall. It says TCP Connection failed for
5061 and never falls back to TCP. In another test, we disabled TLS on the VCS altogether, in this
case the VCS just reports TLS not active and rejects the call with 408 Request timeout.
5060 for cisco.com, however 5061 is disabled on the firewall. It says TCP Connection failed for
5061 and never falls back to TCP. In another test, we disabled TLS on the VCS altogether, in this
case the VCS just reports TLS not active and rejects the call with 408 Request timeout.
Conditions: VCS not falling back to TCP when it cannot establish connection with TLS.
Workaround: Turn on 5061 on the firewall and enable TLS on VCS.
Table 4: Issues resolved in X8.1 (continued)
Open issues
The following issues apply to this version of Cisco TelePresence Video Communication Server.
Identifier
Description
CSCuo82382
Symptoms: Encrypted H.323 call in ad-hoc conference, get black screen after session refresh
(with default configuration, after approximately 15 minutes of conference call).
(with default configuration, after approximately 15 minutes of conference call).
Conditions: In some instances, under investigation, ad-hoc conference call with encrypted
H.323 call.
H.323 call.
Workarounds: Perform a Hold / Resume. Alternatively, use SIP as call protocol instead of H.323.
Alternatively, disable encryption call.
Alternatively, disable encryption call.
CSCuo75250
Symptoms: VCS restart due to internal application crash with “An unexpected software error
was detected in app[13484]: SIGSEGV (address not mapped to object)
@0x0000000000000008” alarm message.
was detected in app[13484]: SIGSEGV (address not mapped to object)
@0x0000000000000008” alarm message.
Conditions: Rare, possibly related to interworking, under investigation.
Workaround: None, the app process will automatically be restarted.
CSCum47768 Symptoms: Media stream fails to work. (e.g. slide content)
Conditions: This occurs if re-invite updates the SDP, adding media lines for example, and a SIP
ACK/200 message for a previous re-invite sequence is lost in transit.
ACK/200 message for a previous re-invite sequence is lost in transit.
Workaround: None.
CSCup09760
Symptoms: Alarm raised in system, "Application failed - An unexpected software error was
detected in app[13650]: SIGSEGV (Sent by the kernel) @0x0000000000000000"
detected in app[13650]: SIGSEGV (Sent by the kernel) @0x0000000000000000"
Conditions: Unknown.
Workaround: None required, the service automatically recovers within a few seconds.
CSCup12382
Symptoms: Interworking call where received profile-level-id and max-br value defined in the
SDP are not being mapped to the correct value in the outgoing capset.
SDP are not being mapped to the correct value in the outgoing capset.
Conditions: SIP to H.323 interworking.
Table 5: Open issues