I just tried this on a UC540 in CCA 2.2.6 and successfully change the Voice VLAN from 100 to 2. Although I was doing this in 2.2.6, this should work the same in 2.2.5. (Note: that this WILL cause disruption in your network, so do this during down time.) Make sure you're plugged directly into your UC540.
I'll post a Lab with screenshots on this later, but for now I'll give you the short of it:
Create a new VLAN, naming it something other than "Cisco-Voice"
In Telephony-->Voice-->Network Tab, Define this new VLAN as your new Voice Vlan. (You'll receive some warnings)
in Switching-->VLANs, Resolve VLAN conflicts by clicking on the red boxes highlighted, and selecting the following drop-downs:
Configure your new VLAN as 'Cisco-Voice'
Delete Previous Voice VLAN
Now Click 'Resolve' at the bottom
Configure your UC540's Smartports with their new Voice VLAN information. (Configure-->Switching-->Smartports)
Select EACH port, then click 'Modify' to choose your newly created Voice VLAN from the drop-down
Click 'Apply', 'OK'
All phones connected to these Switchports will now reboot, and successfully register on their new Voice VLAN.
Note: If you have an ESW expansion switch installed, the new Voice VLAN information will be configured for you automatically, and all phones attached will also reset, and re-register)
Your UC540 is now configured on your new Voice VLAN.
In the example provided above, the ip source-address remains unchanged. (10.1.1.1 port 2000) I believe the aim was to change the default Voice VLAN ID, and not the ip scheme? I suppose this would make sense if Pat was conforming to an existing voice subnet. However, even If this was the case, the voice subnet and ip source-address can still be defined during the Telephony Setup Wizard.
Thanks for the suggestions, will try the configuration after the wizard.
I just thought the CCA wouldn't pigeon hole me to DATA VLAN 1 , CISCO-VOICE VLAN 100. Custom configuration should be whatever i want. Hopefully this gets addressed in CCA 3.0, but will try with current release.
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