Hi Vijay,

> +static void netreg_status_watch(int status, int lac, int ci, int tech,
> +					const char *mcc, const char *mnc,
> +					void *data)
> +{
> +	struct ofono_modem *modem = data;
> +
> +	if (status != NETWORK_REGISTRATION_STATUS_REGISTERED &&
> +			status != NETWORK_REGISTRATION_STATUS_ROAMING)
> +		return;
> +
> +	switch (tech) {
> +	case ACCESS_TECHNOLOGY_EUTRAN:
> +		switch(modem->pref_mode) {
> +		case PREFERRED_UE_MODE_PS_VOICE_CENTRIC:
> +		case PREFERRED_UE_MODE_PS_DATA_CENTRIC:
> +			/* No need to do any switching */
> +			break;
> +		case PREFERRED_UE_MODE_CS_PS_VOICE_CENTRIC:
> +		case PREFERRED_UE_MODE_CS_PS_DATA_CENTRIC:
> +			/*
> +			 * All atoms needs to be created which is
> +			 * already done
> +			 */
> +			break;
> +		}
> +		break;
> +	case ACCESS_TECHNOLOGY_GSM:
> +	case ACCESS_TECHNOLOGY_GSM_COMPACT:
> +	case ACCESS_TECHNOLOGY_UTRAN:
> +	case ACCESS_TECHNOLOGY_GSM_EGPRS:
> +	case ACCESS_TECHNOLOGY_UTRAN_HSDPA:
> +	case ACCESS_TECHNOLOGY_UTRAN_HSUPA:
> +	case ACCESS_TECHNOLOGY_UTRAN_HSDPA_HSUPA:
> +		switch(modem->pref_mode) {
> +		case PREFERRED_UE_MODE_PS_VOICE_CENTRIC:
> +			/* Switch to 3G */
> +			break;
> +		case PREFERRED_UE_MODE_CS_PS_VOICE_CENTRIC:
> +		case PREFERRED_UE_MODE_CS_PS_DATA_CENTRIC:
> +			/*
> +			 * All atoms needs to be created which is already
> +			 * done.
> +			 */
> +			break;
> +		default:
> +			break;
> +		}
> +		break;
> +	}
> +}
> +

So what exactly needs to be done here?

Regards,
-Denis