Cisco Cisco TelePresence MCU 4510 Release Notes
Open issues
Cisco TelePresence MCU 4.4(3.54) Maintenance Release Notes
Page 9 of 27
Identifier
Description
CSCud59262
In previous releases, there was incorrect behavior of the conference's disconnect remaining
guests feature and the participants' auto-disconnect feature. The MCU would ignore chairs that
were configured to auto-disconnect when deciding if only guests remained in the conference. In
this release, under the same circumstances, the MCU does not disconnect the remaining guests
unless all the chairs have disconnected—irrespective of whether any chairs are configured to
auto-disconnect.
guests feature and the participants' auto-disconnect feature. The MCU would ignore chairs that
were configured to auto-disconnect when deciding if only guests remained in the conference. In
this release, under the same circumstances, the MCU does not disconnect the remaining guests
unless all the chairs have disconnected—irrespective of whether any chairs are configured to
auto-disconnect.
CSCud48267
In previous releases, the MCU would attempt a registrar call for an endpoint that was configured
to use a SIP registrar, even if SIP registrar usage was disabled for the whole MCU. This has been
resolved in this release.
to use a SIP registrar, even if SIP registrar usage was disabled for the whole MCU. This has been
resolved in this release.
CSCtz42558
In previous releases, custom codec selections were not correctly applied to pre-configured SIP
participants when they dialed in to the MCU. This is resolved in this release.
participants when they dialed in to the MCU. This is resolved in this release.
CSCuc40073
In previous releases, the MCU event log sometimes reported failure to send serial messages to
the Supervisor even when the box is idle. This is resolved in this release.
the Supervisor even when the box is idle. This is resolved in this release.
CSCty83668
In previous releases, when a SIP participant was put on hold, it would appear either as a black
pane or a frozen image to other participants. This is resolved in this release; when a participant is
put on hold, that participant's video pane is not displayed.
pane or a frozen image to other participants. This is resolved in this release; when a participant is
put on hold, that participant's video pane is not displayed.
CSCty77949
In previous releases, when attempts were made to overwrite a valid auto attendant banner
image with an invalid image, the MCU might not subsequently have been able to delete the
valid banner image when a user deleted the associated auto attendant. This led to a situation
where all the auto attendant banner storage space was used, but the images could not be
deleted – preventing further banner image uploads. This is resolved in this release.
image with an invalid image, the MCU might not subsequently have been able to delete the
valid banner image when a user deleted the associated auto attendant. This led to a situation
where all the auto attendant banner storage space was used, but the images could not be
deleted – preventing further banner image uploads. This is resolved in this release.
CSCty98516
In previous releases, the display field in the FROM header of an MCU sip log did not correctly
display Unicode characters. This is resolved in this release.
display Unicode characters. This is resolved in this release.
CSCua09538
In previous releases, the MCU 4500 series could experience a DSP watchdog trip restart due to
exposure to corrupt H.264 bit stream. This is resolved in this release.
exposure to corrupt H.264 bit stream. This is resolved in this release.
CSCub18878
In previous releases, there were a number of areas within the H.264 decoder code where invalid
(non-H.264) data could potentially cause an error and as a consequence the DSP could crash
or timeout. The H.264 decoder resiliency has been vastly improved in this release.
(non-H.264) data could potentially cause an error and as a consequence the DSP could crash
or timeout. The H.264 decoder resiliency has been vastly improved in this release.
CSCub15957
In previous releases, the MCU would not refresh its registration to a SIP registrar if the contact
header field of the 200 OK message from the registrar exceeded 256 characters.
header field of the 200 OK message from the registrar exceeded 256 characters.
This issue has been resolved in this release.
CSCub15970
In some circumstances, the MCU stopped responding to HTTP(S) requests on both the web
interface and API calls. This recent problem has been attributed to Firefox browser version 14.0.1
(the first release code of Firefox 14; release date: 17th July 2012) and is improved in this release.
This version of Firefox is still not recommended; Firefox 15 or later should be used instead. See
also the limitations section of these release notes.
interface and API calls. This recent problem has been attributed to Firefox browser version 14.0.1
(the first release code of Firefox 14; release date: 17th July 2012) and is improved in this release.
This version of Firefox is still not recommended; Firefox 15 or later should be used instead. See
also the limitations section of these release notes.
CSCty91132
In previous releases, when multiple names were received in the SIP header field, the MCU often
did not prioritize the 'display field' among other names. This is resolved in this release.
did not prioritize the 'display field' among other names. This is resolved in this release.
Open issues
The following issues apply to this version of the Cisco TelePresence MCU Series software.