TAPI 3.0 and Notes 6.5 or 7 and Avaya IP softphone 6

Hello

I have a script for initializing TAPI on a form that works on my notes 7, but not on the notes 6.5 clients in the house:

(in globals on the form)

Declarations

Dim myTAPI As Variant

Dim myTapiAddress As Variant

Dim theCall As Variant

Sub Initialize

Set myTapi= CreateObject("TAPI.TAPI.1")

Call myTapi.Initialize

On Error Resume Next

Forall address In myTapi.Addresses

	c=Lcase(address.ServiceProviderName)

	If  c= "pwsp32.tsp" Then

		Set myTapiAddress=address

		Exit Sub

	End If

	c=""

End Forall

End Sub

My problem is that the 6.54 (win XP) clients don´t seem to be able to find the “pwsp32.tsp” (beeing Avaya IP/Line), only one of the Lcase(address.ServiceProviderName) resolves into a string. On those clients that i have upgraded to 7.0 it works fine.

Would my solution be to upgrade clients, or could there be a fix to make it work on the 6.54 clients?