either have manually configured a phone on CUCM, or.It will use the physical interface card to get to CUCM and register. The VTG-PC softphone will be configured with IP address 192.168.2.6. The IP address of the CUCM server is 192.168.2.250. The network card in Vmware is set to “bridged” mode. a LAN connection to CUCM Here is the topology we’re going to work on: We have a CUCM server installed on Vmware.the IP Blue VTGO-PC Multilab software,.IP Blue VTGO-PC softphones prerequisites Here are the prerequisites to configure a VTGO-PC softphone and register it to CUCM: In this post, I’ll show you how you can have a VTGO-PC softphone installed on your computer and register it to a Cisco Unified Communication Manager.