The Strata DK family of digital business telephone systems is a market leader in providing innovative telecommunication solutions to your business needs. No matter what your company's size and requirements, Toshiba has the right telecommunication system for you. STRATA DK14 - Telephone system with up to 4 outside telephone lines and 8 telephones. STRATA DK40i - Telephone system with up to 12 outside telephone lines and 28 telephones. STRATA DK424i - Telephone system with up to 200 outside telephone lines and 336 telephones. STRATA Airlink Wireless Telephone System - Provides the complete solution for mobile productivity, enabling your employees to make and receive calls throughout your entire facility, within multiple buildings on your premises. Digital Telephones and Consoles - Speakerphones, cordless phones, wireless phones and PC consoles.