Maverick

Hello I'm new to Express Talk, just installed it on 2 computers in my LAN network and setup to work with a SIP-provider. However, while both using same SIP-id, I want to be able to make direct calls inside the LAN. I've setup a line(6) to empty server and empty password on both PCs, and tried to call just like 2453592@192.168.0.10 , but I'm getting those messages: and so on.. can you help me please? ps axon is not running