Also includes support for the following new features: * Boss/Admin (Shared Line Appearances) – Phase 1 * Better Together Over Ethernet (BTOE) – Phase 1 * Lync Address Book Web Query (ABWQ) * Call Park and Retrieval * Peer-to-Peer Video Calling (Lync 2010 only)Major release including Lync Qualification, hotfixes and the following new features: * Improved Lync Contact Card support with Call to and Transfer to Voicemail * Improved Boss/Admin transferring behavior * PIN Authentication support from web UI * Color Expansion Module support for Lync (previously only available in 4.x firmware)Maintenance release including hotfixes and the following enhancements: * Addressed bandwidth issues seen on some VVX models with CAC * Added new parameters to control various physical and display options Major release including hotfixes and the following new Lync features: * Enhanced BTo E 3.0.0 client with Audio playback support * Centralized Conference Control Protocol (CCCP) support * Exchange Autodiscover Support * Safe Transfer for Boss/Admin scenarios * Music On Hold Updated support for Skype for Business 2015 Server environments * Registration for Skype for Business Online tenants in Office 365 * Improved first time user sign-in experience including Time Zone selection Major release including hotfixes and the following new features: * Skype for Business themed UI for VVX 500/600 models * New Web Sign-In authentication method * Call Transfer UI improvements and support for distribution list expansion * * Updated Sf B User Interface on VVX 4xx, 5xx, 6xx series phone models * Join button available for Skype Meeting created by external parties * Device Lock screen redesigned with various improvements and contact photo support * Multi-Factor Authentication support added for some third parties like Ping Federate and Okta * Web Proxy Auto discovery (WPAD) Support * Support for the SILK audio codec * Hotdesking support for Lync/Sf B Server deployments * Manual network-based BTo E pairing without the need for physical Ethernet uplink In order to successfully download the UCS firmware package from the Lync Server to a VVX phone the device must first be running at least version 18.104.22.16874 which was the first officially released version to support the Lync Device Update service.The phone must also be successfully registered to a Lync Server in order for this capability to function.A quick check of the device updates status on the phone at this point would show that there is still no available update.It is important to understand what the three version fields represent in the device update configuration.For LPE devices the update service is queried immediately after the initial registration and then again after a hard-coded period of time.
That cmdlet basically puts the software into a staging area which does nothing until an administrator either approves or cancels the pending update.
The Approved Version is exactly as it sounds: the version of software which the administrator has most recently approved for a given device mode.
The Restore Version is initially blank and will be populated when this process is performed again with another newer update.
As important as upgrading the firmware is, having a way to reverse the update is just as imperative.
It is always possible that a new firmware version does not operate as expected in some environments so if an issue is discovered soon after upgrading to a new version then being able to roll-back the devices to the previous release is critical.