Hi Ravi,

> Can we make usrp to behave like a normal MS with parameters
> of SIM in "test sim" feature from telnet. I am not using any
> real SIM or writer.

Yes, it's possible to use the virtual SIM-card, and this is exactly
what we are doing during the SDR PHY development.

Check out this example from FakeTRX:

https://osmocom.org/projects/baseband/wiki/FakeTRX#Running-mobile-application

> As we pass the make command as " make nofirmware"  from osmocombb/src
> directory after enabling the " CFLAGS += -DCONFIG_TX_ENABLE " in
> osmocom-bb/src/target/firmware, will it still be able to transmit ?

No need to change the 'CONFIG_TX_ENABLE'.
This affects only the firmware for Calypso based hardware.