Flash based softphone + pbx system by installing/ configuring/ extending Openfire + Asterisk + Openfire plugins for asterisk and voip.
The end system delivery should be a pbx system with flash based web softphone on my windows server (asterisk to be installed in virtualisation like vmware etc.,) as endpoint and I should be demoed by making few SIP to pstn calls through the flash softphone from my server.
The end product needs to be branded as we require.
Pretty easy and 4-5 hours task for those who know what they are doing.
Let me know of any queries.