Define the country to which the user will be making calls and whether or not the international dialing is enabled. Set up the external calling permission to help expedite dialing.
Determines the default calling country for the user created within a site, but can be overridden by the administrator at the user level. Calling country is not necessarily the home country, but often determined by the country the user calls the most. For example, if a user in US makes most of his calls to Germany, the calling country should be defined as Germany Numbering Plan.
To define calling country:
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