There should be an option called 'none' under System Setting > 'Set default telephony provider' so that a user who do not wish to use Lync or Skype must not get the hyperlink on default field 'Phone'.
Comments
Thank you for your suggestion. We are considering this functionality for a future release of CRM. Thank you, Tony S. This posting is provided "as is" with no warranties, and confers no rights.
Category: Microsoft Office Integration
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http://crmideas.dynamics.com/ideas/dynamics-crm/809746
Category: Microsoft Office Integration