2007/11/27, Chandra Shekhar Agrawal <cagrawal at velankani.com>: > Hi Guys, Greetings! > > Can OpenSER be used to develop a B2BUA ? No. You should try Asterisk B2BUA. Some rumors exists that SEMS can be used also, but I don't know anything about success stories with SEMS as B2BUA. -- With best regards!