IP office phone system and phone services to the greater New York and NYC area. Choose from manufacturers like At&t, Toshiba, Panasonic, and NEC phones for office and business. All phones and phone services come with a warranty. Whether you’re looking to update your for office phone or home business phone system or want to purchase new phones, New York Telephone Systems is the place for all your office phone needs! Our Avaya phone system offers the best office phone system and business phone system in the New York area. Whether you’re looking for a new phone system, to update your current IP phone system, or need a phone system lease for your business, New York Telephone Systems has everything you need.