Hi Yuvaraj,

> Control @ ste_gprs_activate_primary
>  Command is AT+CGDCONT=1,"IP",""
> Control @ ste_cgdcont_cb
> Control 1 @ ste_cgdcont_cb
> ofonod[8803]: src/gprs.c:pri_activate_callback() 0xa02f868 (null)
> ofonod[8803]: src/gprs.c:pri_activate_callback() Activating context
> failed with error: Unknown error type

You might try provisioning the context first since you're trying to
activate an empty APN.

See doc/connman-api.txt for more details.

Regards,
-Denis