Need Help with GetProperties() method on SimManager interface.

Hi, We are testing SimManager interface , In that we want to check the whether sim is present or not. To do that we are invoking "GetProperties" method on SimManager interface , but in return we are getting all the properties on the given interface . As a result of this we are facing some delays to parse all properties, is there any mechanism in ofono to get value of the required property on the given interface? Thanks sai.