Hi chad, Output of telnet localhost 8022 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. connect Connection closed by foreign host. On my application side I got this error: /home/abdlquadri/node_modules/modesl/lib/esl/connection.js:386 uuid = self.getInfo().getHeader('unique-id'); ^ TypeError: Cannot call method 'getHeader' of null at Connection.execute (/home/abdlquadri/node_modules/modesl/lib/esl/connection.js:386:24) at null.<anonymous> (/home/abdlquadri/public_html/coWork_nodeServer/server.js:9:15) at EventEmitter.emit (/home/abdlquadri/node_modules/modesl/node_modules/eventemitter2/lib/eventemitter2.js:313:21) at Server._onConnection (/home/abdlquadri/node_modules/modesl/lib/esl/server.js:46:10) at Server.EventEmitter.emit (events.js:96:17) at TCP.onconnection (net.js:1038:8) I guess it connected that is why the application can crash. Probably becuase telnet did not send an esl connection object. Regards.