Telit GPRS using GE865-QUAD Python

[vgnulinux]

Hi All,
I am trying to configure TCP AT run service in server mode on evaluation kit using GE865 module.
Configuration steps are as follows.

1) Opening PDP context.
AT#SGACT=1,1
#SGACT: 10.2.*.*
OK
2) Socket parameter configuration.
AT#SCFG=1,1,300,90,600,50
OK
3) TCP At configuration
AT#TCPATRUNCFG=1,2,1024,12345,”m2m.t-mobile.com”,1,5,1,5,2
OK
4) Firewall configuration
AT#TCPATRUNFRWL=1,”0.0.0.0”,”0.0.0.0”
OK
5) Activate TCP AT run in listen mode.
AT#TCPATRUNL=1,1

After configuring trying to access module through Telnet but it throws error “Connection failed”. Pinging the module returns “Request timed out”.
What could be wrong with TCP settings due to which module cannot be accessed through Ping or Telnet.

Thanks,
VGNU