Hi Friends... I am very new to Voip and cisco Routers. I need to help configure the Voice GW router 2851 with 2x4FXO ports and 1xE1 port and 3750 Cat switches as core sw. I have to configure the voice ports on SW with VLAN ID for Voice svr and VLAN ID for IP phones. any body can guide me how to configure router and switches.. what is basic configuration needs for Router and Switches.