https://www.abwholesaler.com/scripts/LegacyMap/filters/tel.js?id=639256444868187174

1app.filter('tel', function () {
2    return function (tel) {
3        if (!tel) { return ''; }
4
5        var value = tel.toString().trim().replace(/^\+/, '');
6
7        if (value.match(/[^0-9]/)) {
8            return tel;
9        }
10
11        var country, city, number;
12
13        switch (value.length) {
14            case 10: // +1PPP####### -> C (PPP) ###-####
15                country = 1;
16                city = value.slice(0, 3);
17                number = value.slice(3);
18                break;
19
20            case 11: // +CPPP####### -> CCC (PP) ###-####
21                country = value[0];
22                city = value.slice(1, 4);
23                number = value.slice(4);
24                break;
25
26            case 12: // +CCCPP####### -> CCC (PP) ###-####
27                country = value.slice(0, 3);
28                city = value.slice(3, 5);
29                number = value.slice(5);
30                break;
31
32            default:
33                return tel;
34        }
35
36        if (country == 1) {
37            country = "";
38        }
39
40        number = number.slice(0, 3) + '-' + number.slice(3);
41
42        return (country + " (" + city + ") " + number).trim();
43    };
44});