In the event that the latest update has already been approved on the Lync Server then an earlier version needs to be restored.
#POLYCOM CX700 FIRMWARE UPGRADE LYNC DOWNLOAD#
Until Microsoft provides a link to download a previous version of the firmware the February 2012 (CU5) update file for the Tanjay devices can be downloaded directly from here: ucupdates_tanjay_cu5.cab 4100 (CU6) release successfully.īut when Microsoft releases a new cumulative update the previous version is replaced on their download site, so only the latest version is ever available for download.
4066) and once that is complete then it can then be upgraded to the. Instead the device will need to first be updated to any previous Lync version (.0 through. (For an unsupported rollback procedure see Chris Lehr’s blog article.) Workaround
As there is no supported downgrade process to go from a newer Lync 4.x version down to an older OCS 3.5.x version then shipping these devices pre-installed with Lync firmware would prevent deployments still utilizing OCS from using the phones. This can cause problems as newly purchased Tanjay devices will still ship with the older OCS firmware version because the CX700 is the only Lync Phone Edition devices supported with Office Communications Server. Although official Microsoft documentation for Lync will not use the numeric identifiers for the various releases, throughout unofficial articles and technical forum discussions the CU nomenclature is widely used. Any Tanjay family device (Polycom CX700, LG-Nortel 8450) currently running a Communicator Phone Edition (CPE) release (1.x or 3.5.x) cannot update directly to the Lync Phone Edition (LPE) CU6 (.4100) release due to a change in the way the newest firmware package was created.įor clarification the Cumulative Update for June 2012 release is commonly referred to as Cumulative Update 6 (CU6) and the previous March 2012 release was Cumulative Update 5 (CU5).
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