There many times where different industries overlap. One of those areas is with Access control OKC. This term may be unfamiliar to many people, but it’s a type of service that a number of people use on a daily basis. It’s also a type of service that you’ve probably used in the past even though you didn’t know it. Access control is basically the use of phone systems connected to security systems. This is most noticed when you go to a business or a residence that has a gated entrance. Unless the business is manned by security detail, there will typically be a keypad and which you can dial a number and speak with somebody who can allow you entrance into the business facility or the home property.