Hi from now i using api:execute("chat","sip|"..userNumber.."@mydomain|external/sip:"..toUser.."@mydomain|"..message:getBody()) And it works find but userNumber also sets at the uuerName parameter at the from field: from: "1001" <sip:1001@mydomain.com> I wanna control username here and send it as: from: "Peter Pen" <sip:1001@mydomain.com> Could you help me to find a way hoe to do it? didnt found any informaion about it at the documentation.