String mobilePhone = registrant.getMobilePhone();
if (Validator.isNotNull(mobilePhone)) {
if (Validator.isPhoneNumber(mobilePhone)) {
Phone phone = PhoneUtil.create(0L);
phone.setUserId(registrant.getUserId());
phone.setCompanyId(companyId);
phone.setNumber(mobilePhone);
phone.setPrimary(true);
phone.setTypeId(getMobilePhoneTypeId());
phones.add(phone);
PermissionChecker permissionCheckerBackup = PermissionThreadLocal.getPermissionChecker();
PermissionThreadLocal.setPermissionChecker(getAdministratorPermissionChecker(companyId));