Greetings from Poland,is there any chance to use virtual interface (i.e. loopback 0) for the IP SLA feature of cisco routers? I would like to set a public ip address for this interface and would like to test www, dns and my core network.Thanks in adv...

I am trying to establish link between A and B subscribers calling fromGSM network through the Call Controller installed in IP enviroment.In below scenario, subscriber A makes the call to number 123456789. After this, Call Controler sends INVITE reque...