TCPATRUN in server mode help??

HI,

I am trying to put Telit module Module GM682 to listen mode, so I can will be able to send AT commands remotely. But it seems like none of the

TCPATRUN… cmds return an ERROR.

Could kindly someone show me how to get started with this. Because I have tried commands according to the Telit_Run_AT_Remotely cmds but I cannot seem to get a positive response back. according to the manual these are the steps that I should take.

i have tried setting the interface to SELINT=2 and I have test this on both GM862 & GC 864 but the TCP command always return ERROR. what am I doing wrong?

AT#SGACTCFG=1,1
AT#SGACT=1,1
AT#TCPATRUNFRWL=1,"SERVER IP","MASK"         
AT#TCPATRUNAUTH=1,"USERNAME","PASSWORD"         
AT#TCPATRUNCFG=1,2,1024....
AT#TCPATRUNL=1

then I should be able to use a telnet or some terminal with the telit modules IP and port to be able to sent it AT commands.

thanks for your help