Cisco Cisco Expressway Release Notes
Open issues
Cisco Expressway Software Release Notes (X8.2.1)
Page 8 of 18
Open issues
The following issues apply to this version of Cisco Expressway.
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: Expressway 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.
error 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.
CSCup73726
Symptoms: An alarm is raised reporting that an unexpected software error was detected
(parseViaHeader Line: 343).
(parseViaHeader Line: 343).
Conditions: There is an invalid SIP version of SIP/2./UDP in the Via header.
CSCup83131
Symptoms: An alarm is raised on the Expressway reporting a crash that: An unexpected
software error was detected in managementframework.pyc: Detail="Stopping periodic timer
callback." Not completed within="60.000000"
software error was detected in managementframework.pyc: Detail="Stopping periodic timer
callback." Not completed within="60.000000"
Conditions: High resource use.
CSCup89654
Symptoms: Video call through Expressway experiences one-way audio/video, resulting as well
in DTMF not being passed which in turn can fail IVR systems.
in DTMF not being passed which in turn can fail IVR systems.
Conditions: Expressway X8.1.1 with following topology:
CUCM -- SIP -- Expressway -- H.323 -- H.323 MCU with IVR
Table 4: Open issues