Handling none fatal exceptions from COM api's

I have the following code snippet which calls a COM interface api (MS Mobile API)

try
{
    MbnInterfaceManager mbnInfMgr = new MbnInterfaceManager();
    IMbnInterfaceManager infMgr = (IMbnInterfaceManager)mbnInfMgr;

    IMbnInterface[] interfaces = (IMbnInterface[])infMgr.GetInterfaces();
    ///
    /// NOTE: Will throw exception here if no Adapter Present - "Service not Started"
    ///
    foreach (IMbnInterface mobileInterface in interfaces)
    {
        MBN_INTERFACE_CAPS caps = mobileInterface.GetInterfaceCapability();
        MBN_READY_STATE readyState = mobileInterface.GetReadyState();
        IMbnRadio radio = (IMbnRadio)mobileInterface;

        MBN_PROVIDER provider = mobileInterface.GetHomeProvider();
        ///
        /// NOTE: Will throw exception here if no SIM Present.
        ///

The COM Exceptions are handled as below

///
/// Handle COM Exceptions 
///
catch (System.Runtime.InteropServices.COMException ex)
{
    switch ((uint)ex.ErrorCode)
    {
        case 0x8054820A:
             // ...
             break;

        case 0x80070490:
             // ...
             break;

             default:
             string str = "COM: " + ex.Message;
             break;
    }
}

The issue I have is that not all exceptions to my mind are are fatal, as in the 'No SIM' exception and I still require to access the COM interface components that have been created, but the exception terminates all those instances.

How should I go about this, or do I have to go through the construtor processs again ?

Thanks for any advice

Sarah T