COM help

[jezzzzy]

Trying to work with an .ocx file but have limited COM knowledge and little/no documentation on the methods or properties of the object. I ran OLEViewer and have a list of the methods but don't know where to go from here.

Here is my very simple code:

$objTapi = ObjCreate("AvayaPhoneInterface.PhoneInterfaceCtrl.1")
$event = ObjEvent($objTapi,"TAPIEvent_")

With $objTapi
    .switchIpAddress = "10.0.0.180"
    ;more methods to go here
EndWith

While 1
    ;nothing here yet
WEnd

Func TAPIEvent_($Eventname)
    MsgBox(0,"event",$Eventname)
EndFunc

Here is a part of the OLEViewer results:

expandcollapse popup

dispinterface _DPhoneInterface {
    properties:
    methods:
        [id(0x00000001)]
        short registerExtension(
                        short forceLogin, 
                        VARIANT switchIpAddress, 
                        VARIANT extension, 
                        VARIANT password, 
                        VARIANT telecommuteNumber, 
                        VARIANT vpnOverideIp, 
                        short controlOnly, 
                        short emergencyHandling, 
                        VARIANT emergencyHandlingAtNumber);
        [id(0x00000002)]
        void offHook();
        [id(0x00000003)]
        void onHook();
        [id(0x00000004)]
        void dialDigits(VARIANT digitString);
        [id(0x00000005)]
        void pushButton(
                        short buttonNumber, 
                        short buttonModule);
        [id(0x00000006)]
        void transfer();
        [id(0x00000007)]
        void conference();
        [id(0x00000008)]
        void hold();
        [id(0x00000009)]
        void drop();
        [id(0x0000000a)]
        void unregisterExtension();
        [id(0x0000000b)]
        void beep(
                        short frequency, 
                        short duration);

I guess I don't know what the "variants" or "shorts" are. Once I get past the "registerExtension" method, I think I will be able to figure it out. All I get with the above code is "The requested action with this object has failed."