angular.module('starter.services', [])
.factory('Telephone', function() {
    var telephone = 'Téléphone';
    return {
        getVariable: function() {
            return telephone;
        }
    };
 })

.controller('DashCtrl', function($scope, Telephone) {
    $scope.telephone = Telephone.getVariable();
    console.log('Telephone = ' + $scope.telephone); //Here I get badly formmatted accent
})