You can setup the 2960 port connecting to the UC320W as a trunk port if you want to keep it simple. You will have 2 VLAN’s. Vlan 1 for your data and VLAN 100 for your Voice. Make sure that VLAN 100 is tagged and VLAN 1 is untagged. Keep CDP turned On.
For the phones you could try the same type of configuration only utilizing the voice vlan capabilities of the 2960. I have included a link below to help with the configuration.
Configure Multicast Paging on the Cisco IP Phone 7800 Series or 8800 Series Multiplatform Phone
The Cisco IP Phone 7800 and 8800 Series Multiplatform Phones provide voice communication over an Internet Protocol (IP) network...
Add Call Park on a Cisco 7800 or 8800 Series Multiplatform Phone Key Expansion Module
Call park allows the user of the phone to put an incoming call on hold so that the call can be retrieved on another phone. A call is park...