xlite configurations

[gloriagawe]

hie!

m a student currently studying software engineering.n m doing a project for a two stage double factor authentication of an online banking system in which after succesful logging in to the bank website using registered username and password credentials the system phones user on registered VOIP/SIP phone number and then e client enters another password using the concept of DTMF via the the softphone .i only need one or two client to test the project.

now my problem is that i have succesfully installed and configured sailfin on my laptop and i have installed my xlite on e laptop and on another pc in e same network.after the sip account settings the two xlite instances are both ready but i cant call between the two its saying the number is not available.what can be the problem please help!

the other issue is now on using the DTMF settings of xlite .how do i go about it to make sure that the system can actually work using this concept of entering the second password when the phone rings n then the sytem can read the password and logon the client. m totally lost on this part pliz help!