The examples in the docs show:

function beforeLoad(context) {
            if (context.type !== context.UserEventType.CREATE)
                return;
            var customerRecord = context.newRecord;
            customerRecord.setValue('phone', '<tel:555-555-5555|555-555-5555>');
            if (!customerRecord.getValue('salesrep'))
                customerRecord.setValue('salesrep', 46);
        }

should I expect the customer to have a phone number of 555-555-5555 when I load the record in netsuite?