Check the log textbox if the following statement is present (might be accomodated by a 401 exception).
Receiving a service unavailable response on a website usually indicates, that the application pool of the site is not running.
To solve this issue, open your InternetInformation Management and verify all required app pools are started.
Before you can upgrade your CRM 4 to 2011, you will need to uninstall all 3rd party addons and check that all buttons have been deleted. After the migration you can then install the latest version of each addon. Should you have not done this, then it will be more complicated to get rid of the buttons and icons before you can install the CRM 2011 addons.
On a migrated organization, make sure the dcp/gc/ti security role migrated from CRM 4 is deleted.
This migrated role might interfere with the new setup and block the user from installing, because rights are checked wrongly.
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Please note:This article applies to TelephoneIntegration for MS CRM 2011, 2013 and 2015, as well as to CRM 2015/2016.
Basically there are two ways to activate debugging:
Solution 1: Activating debugging via the TI-Setup
Solution 2: Activating debugging on your Client via the Registry
This article contains a detailed guide on how to find out the version number for each mscrm-addons product in CRM 4.0.
Location of the Language Settings on the Client & Server
The name of the Language XML File is: .XML
CTI does need the server component in a hosted environment as well, but you can launch the CTI Server setup from any Client, as long as you have a user with full access to CRM.
You need to select the hosted options on the Connection dialog.
To downgrade the KDTele-tools in order to use the previous event-model, simply donwload the downgrade package from:
and extract the package into a “downgrade” folder within the installation directory of the TelephonIntegration (TI) - Client component.
The problem occurs because MS CRM is using an HttpModule for multitenancy scenarios. This http module is called with an anonymous user account. This is why it fails when trying to request, i.e. the metadata webservice.