Before you can begin your own company, you are going to need one of the current Small business telephone systems that happens to be the most ideal for the needs of your company. The trouble with finding a proper phone system is that there are so many out there you could choose from that you will have to do extensive research before you find the right one. The easiest way to make this decision is to really focus in on what kind of business you are running and consider what type of phone system would serve it best.
If you work alone or with only a couple other people in a small space, maybe selling products from your home or a small office, you won't have much need for a complex phone system. For something like this, you may consider a standard VoIP system, which will allow you and others to make calls through a broadband Internet connection and is much more affordable than even the most basic conventional phone services.
You might be responsible for managing a big office with a staff that includes maybe a dozen or more employees who need their own phone line, and if that's the case, you will need a system that is capable of doing a bit more. When you are in charge of a business of this size, you will probably want to employ a system known as Private Branch Exchange (PBX) which uses a single phone service but grants each employee their own number. Learn more about the subject by clicking here wikipedia.
It may happen that your business is one that requires you or your employees to always be on the go, whether you have to make pickups and deliveries or have to make house calls with your customers, and if so, you will need something that can accommodate that.
For any mobile business, the most practical solution is a mobile phone service, and most services allow you to put several phones on one business plan for a very reasonable discount. Considering that you could have your office calls forwarded to your mobile phone, you won't have to worry about missing a single call.
Of course, this is only a handful of the many small business telephone systems available, but you should get the idea. As long as you are thinking practically about the needs of your company and what type of system will do the best to meet them, you should be able to find the perfect system for you. Help can be found if you click on hosted PBX.