CME on GNS3 3725 router Basic

    This is very simple and basic setup for soft IP phone (software-based phone installed on PC);

    You need 3725 IOS, MS Loopback, and Cisco IP Communicator (it might work with other software-based phones)

     

    Assign Cisco IP Communicator phone to MS Loopback and set tftp server to IP of router interface connected to MS Loopback;

    In my case: IP of Fa0/0 is 172.16.0.1 and IP of MS loopback is 172.16.0.10 (no default gateway) all in 255.255.255.0

     

    Try it and let me know if you have problems;

     

    Make sure your router has at least 256 MB RAM !