{

    * Starts dialing to recipient

    * @since S60 3.2

    * @param aCallParams The call parameters used by the TSY (a TCallParamsPckg object)

    */  

    virtual TInt Dial( const TDesC8& aCallParams ) = 0;

    /**

    * Instruct to do no FDN checking when dialling.

    * Needs to be called before every dial for each call separately.

    * If this method is not called at all default is to use FDN. 

    * Value will be reset to default when call goes back to disconnected state.

    * @since S60 v3.2

    * @param none

    * @return none

    */

    virtual void NoFDNCheck() = 0;

    /**

    * Returns call information

    * @since S60 3.2

    * @param aCallInfo TMobileCallInfoV3

    * @return KErrNone if succesfull, otherwise another system wide error code

    */

    virtual TInt GetMobileCallInfo( TDes8& aCallInfo ) const = 0;

    /**

    * Switch in the alternating call mode of an alternating call

    * @since S60 3.2

    * @param None

    */

    virtual TInt SwitchAlternatingCall() = 0;

    /**

    * Gets the calls data call capabilities

    * @since S60 3.2

    * @param aCaps TMobileCallDataCapsV1

    * @return KErrNone if the function member was successful, 

    * @return KErrNotSupported if call does not support circuit switched data, 

    * @return KErrNotFound if this call is not a data call

    */

    virtual TInt GetMobileDataCallCaps( TDes8& aCaps ) const = 0;

    };