Yes there is a way but is not a Cisco Tool, is the Serial Grabber this software will retrieve this info about the ip phone:
I made a test with the following ip phones 7911, 7941, 7961, 7970, 7962 and it works. You have to put the network range that you wanna do a scan and the software will find the ip phones on the network.
Take a look here is in portuguese but you can find the software:
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.