You mean to say if both the switches can see each other or not? In that case if you have configured the inter switch link as trunk then only both can see each other but u have to configure the VTP parameters in both of them. By default all the switch are in VTP server mode so they can see each other if u don't configure the VTP also. But The PCs connected to both the switches can't communicate unless u have a Layer 3 devices connected inbetween the switches for inter v-lan routing.
VTP is not at all concerned with communication of VLANS. No matter you configure VTP in server mode, client mode or transparent mode with any VTP domain mame it does not affect communication of machines.
VTP is just to synch vlan information. Now as Paresh said you can make all machines talk to each other if you just connect a cross cable between 2 ports in 2 different VLANS without intervlan routing and this is what a leakage of technology is.