private int mapStringToPhoneType(String label) {
        int phoneType;
        switch (label) {
            case "home":
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_HOME;
                break;
            case "work":
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_WORK;
                break;
            case "mobile":
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE;
                break;
            case "main":
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_MAIN;
                break;
            case "work fax":
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_FAX_WORK;
                break;
            case "home fax":
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_FAX_HOME;
                break;
            case "pager":
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_PAGER;
                break;
            case "work_pager":
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_WORK_PAGER;
                break;
            case "work_mobile":
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_WORK_MOBILE;
                break;
            case "other":
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_OTHER;
                break;
            case "cell":
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE;
                break;
            default:
                phoneType = ContactsContract.CommonDataKinds.Phone.TYPE_CUSTOM;
                break;
        }
        return phoneType;
    }
Retrieves <code>contact</code> for contact, or <code>null</code> if not
available.

@param contactId contact identifier, <code>recordID</code>
android/src/main/java/com/rt2zz/reactnativecontacts/impl/ContactsManagerImpl.java