Clone of scripting for SMS and Telephone Conferencing Capability

I am looking for clone of scripting and functionality of SMS and Telephone conferencing like [login to view URL] . No dreamers or false promises you can't deliver. Must prove that you can perform project as specified. Payment terms will be 25 percent down at acceptance of bid then final payment at conclusion and successful beta testing and intergration of scripting into my web. Bidding to end early if worthy candidate found prior to due date. Bid must address my requirements. Will not reply to canned responses anymore. Terms are stricted I have wasted valuable time on other projects through unqualified bidders. Willing to entertain higher bids if justified in proposal and is not useless inflation of price.