I want to use different VLAN with my Call Manager and my IPPhone.
In the catalyst, define voice vlan for my ipphone,
in the router I define the sub-interface for the CUCM and for the Voice VLAN.
Is it possible that phone can function ?
Is it possible?
yes, here you have some info
How to configure a Catalyst switch port to connect to a Cisco IP phone
Voice VLANs and IP phone support on Catalyst switches
How to configure a Voice-over-IP (VoIP) network on the Cisco Catalyst 6500 series switches
The config is known as Router on a stick since the router is the one that takes care of the inter-vlan routing
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