Plus sign in phone number not taken

[mheidt]

If you are using the country code with a plus sign, it is not transfered to the fritzbox.

solution:
private function _clear_phone_number($number) {
return preg_replace("/[^0-9+]/", "", $number);
}

[carlos22]

Maybe it would be better to replace the plus sign (+) with 00, which should be equal.