XT55 AT Command Set - Wireless Data Modules

XT55 AT Command Set10.4 AT^SISCs10.4.1 Effect of parameter Service type Graceful ImmediateSocket TCP/IP connection will be closed after thetransmission of remaining data has completed.TCP/IP connection is closed immediately. Allremaining data are lost.FTPFTP upload:The "OK" response following the commandAT^SISC=, indicates that the FTP service hasaccepted the close command - it DOES NOTindicate the successful completion of the FTPservice close procedure. Successful completionwill be indicated by the appropriate URC"^SISW: x,2". The host application can force aservice shutdown (= 1) if theaforementioned URC doesn't occur after auser defined timeout.TCP/IP connection is closed immediately. Allremaining data are lost.FTP download:Same as immediate: TCP/IPconnection is closed immediately.HTTP TCP/IP connection is closed immediately. TCP/IP connection is closed immediately.SMTPPOP3The SMTP service sends some "closing"commands which are necessary to mark theemail as successfully sent on the server. Theservice enters the "Closing"and remains in this state until the final protocolexchange with the SMTP server has completed.The "OK" response following the commandAT^SISC=, indicates that the SMTP service hasaccepted the close command - it DOES NOTindicate the successful completion of theSMTP service close procedure. Successfulcompletion will be indicated by the appropriateURC "^SISW: x,2". The host applicationcan force a service shutdown (= 1) if the aforementioned URC doesn'toccur after a user defined timeout.Same as immediate: TCP/IPconnection is closed immediately.The SMTP service closes the TCP/IP connectionimmediately. Email transfer is aborted.This mode can be used to cancel an SMTPoperation.TCP/IP connection is closed immediately.XT55_ATC_V03.03 Page 242 of 459 9/9/05Confidential / Released