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Does the Cisco Unified Wireless IP Phone 7920 lose any functionality without specific device identification support in Cisco Unified Communications Manager?

April 26, 2017cisco unified device functionality Identification IP lose phone Wireless

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Does the Cisco Unified Wireless IP Phone 7920 lose any functionality without specific device identification support in Cisco Unified Communications Manager?

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A. No. The only difference is that an additional text file (os79xx.txt) and firmware image need to be added to the TFTP server on Cisco Unified Communications Manager (prior to release 3.3(3) SR1) in order for the phone to obtain the proper firmware when booting or upgrading.