A template for an employee form could also contain a portion asking for the employee's office extension number. This would probably be part of the form especially in big companies where an employee may be reached by another in a different branch office through phone.
First and foremost thing is learning about your equipments and available resources. You will need to make sure that you have someone whom you can use for optimizing the web form. You must prefer a common programming language while creating online form templates. You should consider all the available options first and then pick up the best one among them. You should always remember, the best are also the commonest ones as well. So use those software or programming language that are common or there are experts around you who can help.