Well.. If you would like to have your remote salesmen be able to connect to your system, you might want to look into at least a partial VOIP solution.
As far as finding a good vendor, I would just ask around. If you are a member of the Chamber of Commerce or some other local business organization, ask some of those people.
Also, a good dealer rep will ask you a LOT more questions than you should need to ask them. That is a good tip-off as to the quality of the dealer. They should ask you a ton of questions about your business and its wants/needs in a system before they suggest a system. They should also be willing and able to explain in depth why their system is superior to others.
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Intertel Telephone Repair Toshiba Telephone Repair
